The arch in a girls back when she pushes out her ass and tits at the same time in an attempt to look sexy or slutty. The resulting arch is a slutback. Some arches are natural, others may be forced.
The occurance of splashback during a number 2 that is so accurate, it returns straight back to the point of origin inside the anus. Can be greated with a sly smile of self satisfaction.
A phenomenon which defies all known physical laws when, regardless of size, density, height, force and slope, a dump fires bogwater skywards and strikes the victim directly in the butthole or genitals.
Generally occurs only after you've already pissed in it.
Oh man, splashback! What the hell? That crap was tiny...
when the guy blows a load in the toilet and forgets to flush or doesn't flush, then the woman goes to the bathroom, drops a deuce and the splash from the turd splashes up with the load...and boom there you have a baby 9 months later...."I shall call him lil shit"
A sort of toilet tsunami. Dropping a turd from a height which hits the water, causing a tidalw wave up the pan which in turn sploshes the water over your arsecrack..
Its bad when it happens in your own toilet - Its worse when it happens in a public one.