Wally Womper

The most British way to call someone a cock sucker.

Sir, take that cock out of your mouth! Do you want people calling you a wally womper?

Mount Flushmore

The act of a couple friends pooping in the same toilet without flushing, creating a mountain of poop and toilet paper within the bowl of the toilet. Traditionally this is done in a public restroom, although this can be equally applied to residential restrooms. The act is often considered a form of a prank, although it can also be considered an act of spite or revenge.

"Yo, bro! we totally did a mount flushmore in that gas station restroom! That employee's gonna be pissed when he hears he has to clean it out!"