One-fingered butt plunge 

In the act of wiping one's bottom, when the toilet paper tears and, inadvertently, a finger plunges into the butt hole. (Occurs especially when using cheap toilet paper or when wiping too hard). Can result in a stinky fingernail.

Guy in toilet: Oh, dude, gross!
Guy outside: What happened?
Guy in toilet: I was wiping and I accidentally did the one-fingered butt plunge.

One-fingered butt plunge by LongWayfromHome September 7, 2010

Grumpy Plunge

Unclogging the toilet with your grandma's dildo.

Grandma! The toilet is clogged again and I can't seem to find the dildo. I wish you'd buy a normal plunger because I'm sick of "grumpy plunge".

Grumpy Plunge by fred durst 2 February 20, 2023

to take the plunge 

to take the plunge. verb.

a phrase describing voluntarily trying something for the first time. Often used for experimenting with a particular substance for the first time, like alcohol or an unfamiliar drug. Also includes losing of virginity or some kind of adrenal exercise, like base jumping or skydiving. The phrase illustrates an act of either admirable courage or reckless stupidity. The context may vary.

1) Ah, we can always trust Ross to take the plunge first in the group.

2) Come on, the water is deep enough. Go on, take the plunge

3) Lads, you know how I never said I'd get into the hard stuff? Well... I took the plunge and moved onto kets.

to take the plunge by masoncartoon February 12, 2010

Pittsburgh Plunge 

The act of taking a shit and piss on your partner's chest and then sliding through it and splashing it on their face like the Pittsburgh Plunge ride at Kennywood. Also similar to a Slip N Slide.

Dan: "Hey Rose do you want to try the Pittsburgh Plunge?!"

Rose: "Sure! I hope you have diarreah so its extra slippery!"

Pittsburgh Plunge by GoPens June 12, 2009

butt-plunge 

Another way to explain Anal sex.

look at that hot girl!
Damn man, i want to Butt-Plunge her

butt-plunge by SuckMyBigItalianCock November 28, 2010

booty plunge 

When you see a really hot guy/girl's butt and you comment that you want to booty plunge them. Almost like the term "booty had me like" it's just that good.

I'd booty plunge that fine piece of ass.

I just want to say that your ass is good enough to booty plunge

booty plunge by tj & ratchet December 30, 2013

Hayward Plunge 

After having sex with your girlfriend, you shove her head in the toilet

Last night I gave my girlfriend a Hayward Plunge which helped with the headache from the Donkey Punch.

Hayward Plunge by Leo Ickmee July 4, 2015