In the episode "Your Ed Here" Double D actually got away with saying "What the sam hell are you doing?" to Eddy.
Sam HILL.
The episode where the boys take care of Rolf's two rabbits. By the end of the episode, there are so many bunnies that they flood the street. The sight causes Double D to say:
Double D: Oh my... It seems Mr. and Mrs. Rabbit have been practicing their multiplication tables....
Eddy: What's that thing? Edd: It's called a sextant, Eddy. (Ed and Eddy laugh uncontrollably. It takes Edd a minute to realize why) Edd: *embarrassed* Oh my.
At the end, when Eddy's Brother is defeated, the Kankers drag his unconscious body into his trailer for some "mouth to mouth". Keep in mind that the Kankers are preteens while Eddy's brother is an adult.
And this from a bit earlier: when Eddy shows everyone his brother's trailer.
Kevin: No way! Rolf: Could this be true? Lee: Get in line, girls.
There is also an episode where Nazz is babysitting Eddy, but the title characters are under the impression that she's dating him. This makes for some funny implications concerning some of Nazz's lines:
Nazz: So... dinner by seven, and in bed by nine... easy.
One episode is called "Take This Ed and Shove It".
EEnE also got away with Edd saying some variant of "Good Lord!"
In "Home Cooked Eds", the Kanker Sisters invade Eddy's house while on vacation, and at one point a terrified Edd says something along the lines of, "I fear they're becoming amorous..." He then whispers the meaning into a confused Eddy's ear, and the Eds quickly flee the house, screaming in terror.
Later, when Eddy and Kevin are trying to push the trailer to each other's side of the fence, the Kankers mention it feels like the vacation their mom took. Considering the things said about her character, it could give disturbing images.
We also got this from "Who, What, Where, Ed":
Eddy: [who frightenly looks like a pimp] I'm doing a survey and... Lee: Our mom's not home.
Pretty much every scene ever involving Jimmy, whose sexuality has been called into question several times (though not on the same scale as The Larry 3000 from Time Squad).
Daphne:(Looks at her chest) How am I supposed to compete with that?
The episode where Eddy's mom is cleaning the house and he asks Ed to hide his magazines is one 11 minute long giant middle finger to the radar. At one point he says that his (older) brother gave him the magazines, at another he thinks Ed hid them in a sewer and Edd mentions that the smudge would render them unreadable. Eddy's reply? "It's the PICTURES I'm worried about!"
Also, there was this:
Eddy: I'd tell you I love ya, Ed, but I ain't that kind of guy!
In "See No Ed", Nazz's pants get ripped off in an accident at "Chimp Wurld". But that's not crap past the radar. What IS is Kevin's response.
Kevin: Awesome...
Earlier in the episode, on seeing a street covered in bananas, Jimmy says "I've never seen so much fruit in one place!"
Later in this same episode, Rolf is covered in the food. He states: "The weight of these bananas is crushing Rolf's apples!" One can only hope he's either using a bizarre term from his homeland, or talking about an Adam's apple (that protrusion in the throat that appears in males)...
AND Edd gets totally stripped - by Eddy - at the end...and you hear him complaining about losing his underwear.
A similar case happened in Big Picture Show, where her pants fall off after getting knocked in the air by Kevin's bike.
Also in the movie, when we see the kids in various states of disarray following the unseen scam, Nazz is clearly wearing a box — and only a box.
At the beginning of "To Sir With Ed", it is implied that Ed is humping Double D's leg off-screen while pretending to be a dog.
Edd: I mean, Ed was finally going to- * gasps* Please let go of my leg, Ed.
In one of the later episodes, while at school, the Kanker sisters are giggling and huddled around a large textbook labeled 'Anatomy'.
In the episode "Hand Me Down Ed", a mysterious boomerang causes some of the kids' personalities to change hilariously. When Ed holds it, it he becomes a TV Genius. When Eddy holds it, he becomes maternal. But when Double D holds it? He becomes a stripper. *
And true to the trope, the hat was the only thing that stayed on him at the end of the episode.
In "An Ed Too Many": Sarah is pestering Double D who had climbed up onto a fridge for safety. Sarah looks at the magnetic letters on the fridge briefly. If you were to use the 'A' twice, you would be able to form the word BASTARD out of the only visible letters.
Rolf: Rolf's giant wiener will fetch a pretty penny at the market, yes Victor?
In "Scrambled Ed", Ed, Eddy, Sarah, Jimmy, and Kevin are fighting over the (sleeping) Double D. Jimmy and Sarah want to play doctor with him. Jimmy says a doozy of a line during the fight:
Jimmy: I want to take his temperature!
In "1 + 1 = Ed", Ed saws a circle into the sky and sees the Kanker sisters having a bubble bath. Afterwards, Eddy sniggers and asks him "Did you see anything?".
OK, apparently Eddy only wants to see the Kankers when they're naked? I blame his brother.
And when they first arrive at the party, Nazz walks over to them wearing a bikini and they all melt at the sight of her.
In Robbin Ed, Eddy begins a costume change to confront Captain Melonhead/Johnny, and throws off his underwear and a pair of fuzzy dice. Think about that for a second. What could someone with an inferiority complex possibly be using a pair of fuzzy dice for?
In "A Case Of Ed", Kevin is grounded to his room (for reasons unknown) and Ed and Eddy take advantage of this by annoying him without fear of retaliation from Kevin. One of the pranks Eddy pulls on Kevin is exposing his lower region to Kevin.
Ed: (giggling at this) Oh ho ho! I am turning into a werewolf Eddy!
There's another example during this episode; while Ed is "diagnosing" Double D, Eddy comments:
Eddy: Did Doctor Ed give you the rubber glove treatment yet?
I cannot for the life of me remember which episode this is, but the Eds knock a cow over onto Rolf. He screams "MAMA! A bandage for Rolf!" before:
This is from "Ed, Ed and Away", otherwise known as the Great Balloon Chase.
This troper can't recall the exact episode, but the following exchange is made in one:
Ed: Beans, beans, they're good for your heart, the more you eat, the more you- Eddy: Shut up, Ed.
The episode was "Tinker Ed".
In "Who, What, Where, Ed" (the Chain of Deals episode), Ed asks Rolf where chickens come from. Rolf says he'll show Ed exactly where, as he holds up a chicken and starts to turn its backside towards Ed. Edd cuts him off, saying "Eggs come from chickens, Ed!"
Let's not forget about THIS◊ little freeze frame gesture the creators slipped into the episode "Nagged to Ed".
There's probably several moments in "A Twist of Ed", but what the troper remembers the most is when the Kankers were running away from the Eds. They get in a closet, and Ed was in there making a seemingly suggestive comment.
Ed: It's dark! Hahaha.
Double D offers them the chance to snuggle under his 'blanket of amore'.
From "Look Before You Ed" Eddy says this little gem.
In "Little Ed Blue" Edd and Eddy are rifling through Ed's room and Eddy comes across a magazine called "Chicks Galore" and opens it up...to find that it's pictures ofbaby chickens, much to his annoyance.
Double D: I didn't know they made magazines like that...
In "Rent-a-Ed" after breaking a pipe in Johnny's house while trying to fix it up the Eds decide to convert it into a sauna, Rolf really enjoys it when suddenly his towel blows off revealing he's not wearing anything underneath, everyone reacts in shock or disgust except for Jimmy who curiously says "Ooh!"
During Eddy's story in "Once Upon an Ed", Kevin is a chimp, Rolf is rendered a stick-thin simpleton, Jimmy is a baby, and Nazz... is inexplicably in a bikini.
When Ed wakes the other two Eds up early because he thinks it's a school day in "Cleanliness is Next to Edness", Eddy angrily throws him out of his bedroom. When Ed pops up at the window and complains, Eddy tapes one of his magazines to the window. Ed's grin says it all...
Not to mention Double D ends up at Nazz's house, she points him to the shower, which is full of her underwear.
Later in the episode it is possible to see what is featured in the magazine Eddy taped to the window (As can be seen here)
In "Quick Shot Ed", while they are browsing, Edd finds a magazine...that opens up a centerfold. But it turns out it's just a picture of a Praying Mantis.
Edd: Perfect specimen.
Everything about the Kanker sisters' warped romantic pursuit of the Ed boys is pretty much what Moral Guardians would consider Black Comedy Rape (albeit a TV-Y7 version of it).
Of course some episodes suggest that some of the things the Kankers do to the Eds isn't G-rated. Doesn't help that the word amorous has been used to describe them...
Jonny: Look, Plank! Jelly hearts for Valentine's Day! (begins to poke the jelly hearts, then Plank apparently says something) Holy cow, buddy, of course I washed my hands! Where do you think they've been?