Booty Trench

When your ass crack is so deep and long and dirty brown and shit like the trenches from WW1

Hey man did you hear Lataetae has a Booty Trench?

trench booty

is a guy or girl that has a very long butt like the trenches in world war 1

Sha'Mel: hey Jon do you see that girl over there with that trench booty?

Jon: Hell yea i do that ass is long.