splash up 

when the water in the toilet splashes up on your ass and legs from explosive diareah

I had a lot of splash up this afternoon on the office toilet.

splash up by Johnny Tats December 9, 2007

Slash Up 

The \ key on a keyboard

This is a slash down /
This is a slash up \

Slash Up by BarakObama April 5, 2013

slash it up

to take full advantage of something

person 1 - "there's gonna be free booze at the party tonight"
person 2 - "excellent i'm gonna slash it up"

on spotting someone giving out free food samples "i'm gonna slash some of that up"

slash it up by nicola squire October 18, 2007