So you have a character in the shower (or bath) and they reach for a bar of soap. The soap proceeds to be very uncooperative, slipping out of the person's hands. Occasionally, it happens when someone is washing his (or her) hands. Often seen as part of a black comedy prison sexual abuse scene, or any time a Shower Scene gets Played for Laughs, really. (Especially when the victim slips when he's looking for the soap.)
A bar of soap can also become a variant of a Banana Peel when stepped upon.
- On Azumanga Daioh, Osaka washes her hands while wondering if she's really as spacy as everyone thinks she is. The soap leaps away, and a handkerchief she was holding in her mouth falls into the sink.
- Love Hina has a Bathtub Scene where Mutsumi is helping Naru scrub and the soap falls in between Naru's legs. Mutsumi tries to grab the soap but ends up rubbing Naru's crotch trying to get it. When leaving the bathtub, Naru slips on a bar of soap on the floor and ends up slamming her face onto the toilet.
- Used tragically in Death Parade. Mayu died by slipping on soap and hitting her head, though this is treated more lighthearted than the other deaths.
- In Half Baked, Kenny drops the soap in the prison showers. He doesn't drop it as he reaches for it, but as he is singing into it (yes, this is a strange film).
- In The Naked Gun 33 1/3: Frank is in the prison shower, and the Friendly Neighborhood Prison Sexual Abuser approaches him and drops the soap. He asks Frank to pick it up. Frank replies "no problem," bending over to reveal Iron Underwear.
- Midnight Cowboy opens with Joe dropping a bar of soap while showering.
- In Josie and the Pussycats, Melody keeps dropping the soap in the shower. Of course, this has less to do with its slipperiness than it does with Melody's stupidity.
- Inverted in The Darwin Awards. An insurance investigator insists on using liquid soap in the shower specifically to avoid this trope, and even constructs a bizarre apparatus to prevent himself from falling down in the bathroom (where most home accidents happen). Of course, the apparatus winds up presenting problems of its own.
- Captain SNES: The Game Masta once fell afoul of this...
- Happens to Dilbert. Leads to video of him searching for the sliver of soap in the bath that looks like he is doing something else entirely.
Dilbert: It's so small. I can't even find it!
- Peter references this in the first episode of Family Guy when he ends up in prison with Brian.
Brian: How was your shower?Peter: Oh, I tell you, Brian, all of the rumors about dropping the soap are true.Brian: Really?Peter: Oh, yeah, you can't hold onto that thing to save your life. It was slipping all over the place. Guys were laughing.Prisoner #1: Hey, there's the guy that couldn't hold onto the soap.Prisoner #2: Oh, that was classic.
- The 'slipping-on-the-soap' variant happens twice to Mr. Bogus in the first act of the episode "Bad Luck Bogus", as part of his bad luck-induced Humiliation Conga.
- In an episode of The Flintstones, Fred is showering, and calls to Wilma, asking her where the soap is. She tells him it's probably where he left it - on the floor. Too late - by the time she's said that, he's slipped on it. Fred sarcastically responds, "Don't worry, I found it!"
- Blue's Clues literally has a character named Slippery Soap, a sentient soap bar who, as his name suggests, slips around a lot.