A female that someone dates or marries. That turns into a complete whore. Then tries to gut the individual financially. Comparable to the trench knives used in world war one. Either by marriage or child support for no reason.
Did you hear about Jake the poor guy, got caught up with a trench knife he had to sell his house and boat.
by BadgerAutopsy December 15, 2019
by Big dawg 111000 March 10, 2023
by smartperson311 February 25, 2023
Sha'Mel: hey Jon do you see that girl over there with that trench booty?
Jon: Hell yea i do that ass is long.
Jon: Hell yea i do that ass is long.
by Karc30 May 31, 2009
When you and / or your bro is about to go into a scary or new situation , your bro has got your back if he says this phrase
by GRANDMASTERSPELL August 22, 2015
to begin fooling around with a female then when the pants come off you unexpectedly find that she has a very shitty ass crack, it doesnt bother the male and he commences to have anal sex
Doyle: "Dude oh my god, the other night I got that girl from the bar back to my apartment and found out she was Brown Trenching."
Brad: " Oh god man that is gross... What did you do?"
Doyle: " What do you mean gross??!!??"
Brad: " Oh god man that is gross... What did you do?"
Doyle: " What do you mean gross??!!??"
by HansardSD July 13, 2010
by bowsersgoochcrust January 11, 2021