Splash Back 

When you take a big crap and you terd lands in such a way that the dirty toilet water splashes back up at your ass getting you all wet. Usually refered to when your launching Ass Rockets.

Skaz:Im gona go launch some Ass Rockets
Chubbs:Alright, have fun, and watch out for the splashback!

Splash Back by Chubbs March 14, 2004

splash back 

It's the water that comes back up from the commode and hits your butt when you poop.

Boy, There sure was alot of splash back that time my butt got sooked.

splash back by kythiefsnatcher April 29, 2010

Splash back 

When you take a heavy shit, and the water splashes back up, soaking your butthole. Usually in reference to an overused port-o-jon.
AKA stank water wash, mud cleanse, poor man's bidet.

There's nothing worse that dropping a duce in a port-o-jon that hasn't been pumped out in weeks, and getting a splash back.

Splash back by Hobby-less October 20, 2017

Splash Back 

When you have diarrhea that's so violent that the water in the toilet bowl erupts and hits your butt.

My diarrhea was so bad that "splash back" happened.

Splash Back by Verticalways December 9, 2023

Splash-Back 

The achievement of getting water on ur bum after dropping a log down toilet

"Man, that was some mad splash-back i got there"

Splash-Back by TMB June 17, 2003

Splash-Back 

The urine in which splashes back and leaves wet spots on pants/shorts, underwear, and shirt. Normally happens to guys who forget to aim down, or when you really have to go.

Person1:"I see you got a little splash-back on your pants there. Tough luck dude."

Person2:"I know, but I had to go really bad and was in hurry."

Person1:"Aim down man, aim down."

Splash-Back by M.A.DPenGuiN2111 August 20, 2009

Splash-back infatuation 

Intensified feelings you get for your partner after going on a date with someone else.

After my date with a potential gf, I went home and had crazy intense sex with my partner, it must have been that splash-back infatuation!

Splash-back infatuation by anonymous September 8, 2020