The "low blow" is one of the oldest Heel tricks in the book. Groin attacks are supposed to result in a disqualification, but it doesn't stop heels from sneaking them in without the referee noticing. Or, occasionally, getting deliberately disqualified by using one (championships usually only change hands if the champ is pinned or gives up). Ric Flair was particularly adept at these.
Surprisingly, Flair doesn't seem to cut down on the groin shots when he's a Face.
The heel can also use this to his advantage in matches where the title can be lost by disqualification, like Christian did at WWEMoney in the Bank 2011.
Double Subversion when doing it on The Big Showhere. The Big Show looks like he's in a state of extreme pain, but he is still strong enough to stand up instead of falling down on the wrestling mat.
Chyna used the low blow continually during her Heel run. It never seemed to get her disqualified. This backfiredatWWF King of the Ring 1999.
In general, professional wrestling tolerates groin attacks by women on men. Its rarely accepted the other way around. However, female wrestlers have the same reaction to receiving groin attacks as male wrestlers; after a match where she was straddled on the top rope, Jacqueline once said "you have no idea how much that hurts a woman."
"Stone Cold" Steve Austin in his wrestling attire would sometimes hold his downed opponent between the legs and stomp him in the family jewels just because he likes to open a can of whoop ass.
The Dudley Boys had the "Whazzup Headbutt", a flying headbutt to an opponent's groin delivered by D-Von. They performed this move on Stacy Keibler as well.
Goldust had the "Shattered Dreams", where he put an opponent in the turnbuckle, put their legs behind the ropes to give him better access, and then kicked them.
The Toryumonstable Crazy Max had a move that went like this. Two of the C-Max members would each grab an opponent's ankles and hold him upside down and spread eagle. TARU (who was a trained martial artist outside the ring and used lots of martial arts kicks in his matches) would then deliver an axe kick to the groin.
Ironically, though, a few 'legal' variants exist. These are considered legal because the groin is theoretically not the area being targeted by the moves.
The Manhattan or Inverted Atomic Drop, where a person is dropped tailbone first onto their opponent's knee.
A belly to belly position which causes the opponent's leg to hit the victim's groin.
Hardcore Holly's hardcore kick, where he hangs an opponent over the top rope and kicks them in the abdomen, causing his shin to hit his opponent's groin area. This is justified due to being an indirect strike to the groin, as the target of the attack is the abdomen instead.
A rather common variation happens when a wrestler positions himself on the top turnbuckle. If someone moves his legs or jars the rope hard enough for him to lose balance, there's probably a 9/10 chance that he's going to land on his nuts. Announcers used to call attention to it, but even when they don't, the way the wrestler tends to sell the fall makes it pretty obvious.
Many ECW valets go for a low blow against men when interfering in matches, but Luna Vachon once took this to the extreme by grabbing Stevie Richards by the testicles and tossing him across the ring.
Raven would often start off No Disqualification matches with a blatant low-blow, playing right into his Evil Genius gimmick.
During the May 15, 2000 episode of WCWMonday Nitro, Vince Russo had forced Miss Elizabeth to participate in a steel cage match against Madusa. Fortunately for Elizabeth, Lex Lugerhad arrived and was able to take care of Madusa via the Torture Rack. Russo had then attempted to strike down Luger with a low blow uppercut punch, but this proved to be ineffective as Luger had soon revealed that he had a groin-protected cup from inside his pants and that he had took it off so that he could taunt Russo with it. Upon seeing that his desperate move had failed, Russo had attempted to escape from the steel cage, but Elizabeth, who was standing in front of the steel cage's door, had quickly thrown a fast right kick towards Russo's family jewels and made him fall down to the wrestling mat in a state of extreme pain and agony. Adding insult to injury, Elizabeth had then took Luger's groin-protected cup and began to shove it down Russo's own mouth in an attempt to humiliate him even further. Most Elizabeth fans consider this a Moment Of Awesome for Elizabeth, as she had finally got her revenge against Russo, who had pretty much been a complete Jerkass to her in the past few months. Of course, before this particular ballbust, an earlier one had occurred during the May 3, 2000 episode of WCW Thunder, in which Elizabeth had used a right back mule kick to strike Russo down in the family jewels with a painful groin attack as he had attempted to use her as a Human Shield against Ric Flair during their confrontation after the "Tables Match" between Luger and The Wall.
Torrie Wilson once did this to Perry Saturn through the use of a right back mule kick to the family jewels when they were the final two competitors left in an elimination match at WCW Mayhem 1999. Didn't work well enough to get the pin and that Saturn himself had then gave Torrie one right back via a low blow uppercut punch and won the match. Torrie was also known for delivering some harsh low blow uppercut punches and nasty groin kicks from behind, as she had done to Buff Bagwell during his match against "The Franchise" Shane Douglas at WCW Bash at the Beach 2000 and then to her ex-boyfriend Billy Kidman the following night on WCW Monday Nitro during his match against Jeff Jarrett.
During the "Wedding Gown" match between Stacy Keibler (a.k.a. Miss Hancock) and Daffney Unger at WCW Bash at the Beach 2000, both David Flair and the referee had attempted to pull and keep the girls away from each other as they were fighting against one another from within a wild state and as the referee had tried his best to pull and keep Miss Hancock away from Daffney, she had instantly broken free from him and had soon got real upset with him as she had immediately kneed him in the groin, sending him down in a state of excruciating pain.
Near the end of 1999 in WCW, Kimberly Page (the ex-wife and former valet of Diamond Dallas Page) had gotten involved in a feud with Ric Flair's son David and that the two of them would eventually meet in a match at WCW Mayhem 1999, in which Kimberly would ballbust David by using a knee and two kicks (although this wouldn't be the first time that Kimberly had used a groin attack, as she had previously kneed David in the groin once before during the DDP/Ric Flair "Strap Match" at WCW Halloween Havoc 1999).
During her time in WCW, Nancy "Woman" Benoit was known for getting physically involved in the matches of both Ric Flair and the Four Horsemen, in which she would either slap or kick the opponent when given the chance and opportunity to do so. At WCW Bash at the Beach 1996 during the WCW United States Championship match between Ric Flair and Konnan, Woman proved that she could be quite lethal when it came to groin kicks as she had immediately sneaked into the ring while Flair had the referee distracted and as a dazed Konnan had turned around in her direction, Woman had immediately kicked him in the groin, making him fall down to the wrestling mat in a state of extreme pain while Woman had quickly sneaked back out from the referee's own sight. Surprisingly, the fans had actually cheered when this had happened, considering the fact that Konnan was potrayed as the face while Flair was seen as the heel during their match, so either the fans wanted Flair to win that night or there were a couple of ballbust masochists from within the audience (it probably helped that Woman had wore a white slit dress that had showed off her fine legs). Aside from that, Woman had also done this to "The Laughing Man" Hugh Morrus as she had kicked him in the family jewels during the "No Disqualification Match" between Chris Benoit and Jeff Jarrett at WCW Starrcade 1996.
Most wrestling fans remember the feud between Chris Jericho and Stephanie McMahon during the early 00s and that Jericho would often make fun of and humiliate Stephanie whenever he got the chance and opportunity to do so. Stephanie would soon get some payback against Jericho during the June 26, 2000 episode of Monday Night Raw, in which Jericho would end up being attacked by Road Dogg and X-Pac following his defeat to X-Pac. As Jericho was held in an inescapable position by Road Dogg and X-Pac, Stephanie, who had climbed into the ring during the assault, would proceed to slap Jericho a few times before giving him a devastating kick to his family jewels, causing Jericho to fall to the wrestling mat as he was left aching in a state of extreme pain while Stephanie had celebrated with Road Dogg and X-Pac (oddly enough, Jericho retaliated by costing Triple H, Stephanie's husband, a #1 Contender's match which led to their epic Last Man Standing Match). Aside from that, Stephanie had also done this to both Brock Lesnar and her own father Vince McMahon as she had kicked both of them in the family jewels during her match against Lesnar from within the September 11, 2003 episode of WWE SmackDown!.
Perhaps the most infamous example in wrestling history occurred in late 2005 on an episode of WWE Monday Night Raw, when the entire McMahon family was in a rotten mood (all four members had been stunned by "Stone Cold" Steve Austin the week before) and they were determined to take out their anger on everyoneexceptAustin. Stephanie slapped ring announcer Lilian Garcia just for looking at her, Vince temporarily hired every single person in North America to work for the WWE just so he could fire them all, and it was vowed that someone was going to get terminated that very night, leaving Eric Bischoff a nervous wreck as he was sure he was going to be the scapegoat. The climax of the evening was Vince, Shane, and Stephanie bringing Jerry Lawler and Jim Ross into the ring to force them to apologize for what had happened, even though neither of them had had anything to do with it. Lawler gladly apologized, but all J.R. would agree to say was "I'm sorry your wife got stunned." Shane and Stephanie immediately began throwing tantrums, but then Linda McMahon - usually the Only Sane Man of the family - came out for the first time that evening and told her children that instead of throwing a fit when something didn't go their way, they should actually do something about it - and demonstrated this by firing J.R. on the spot (it was just a 10-Minute Retirement, anyway) and then kicking him in the crotch. (In 2010, when Linda was running for the U.S. Senate from Connecticut, The Daily Show played a clip of this very scene, and one of Jon Stewart's correspondents jokingly demanded to know why no one had cited this incident in an attempt to smear the McMahon campaign until then.)