To be the last person romantically involved with someone before they "come out of the closet". As "striking out" is to be shut down, and happens quite often; fouling out, or turning someone homosexual is far less frequent, just as in baseball.
by Matthias September 19, 2004

When you go forward a base but decide that you don't want to do that anymore, so you go back a base.
by fuck_you5times December 18, 2008

The nefarious process of creating a commode-filling, toilet tissue supported, shit-flotilla in an attempt to air-expose as much fecal material as possible, thus maximizing both odor and offence for subsequent, unsuspecting patrons; frequently deployed in the bathroom facilities of restaurants with poor service, gas stations with exceedingly foul rest room hygiene and other locations deserving of passive-aggressive retribution.
That restaurant had the worse service ever and the food was terrible; there'll be no courtesy flush for them; Foul Floating Filth coming right up...I've been eatin' corn and burritos , too...
by YAWA September 11, 2016

Git: Mildly derogatory, meaning a foolish or contemptible person. e.g. have you just tripped over? You stupid git. You should have watched where you was going then.
Harry Potter: “You’re a right foul git, you know that?”
Ron Weasley: “Anything else?”
Harry potter: “Yeah! Stay away from me.”
Ron Weasley: “Anything else?”
Harry potter: “Yeah! Stay away from me.”
by harrypottersgirlfriend December 24, 2020

The opposite of a fair-weather friend, a foul-weather friend only seeks you out if they have a problem, need a shoulder to cry on, a ride to town or someone to watch their dog, but otherwise they act as if they don't even know you. They're only your chum when they're glum.
A foul-weather friend will never call you to go out with other friends, go to a show or just go hang out, but the minute trouble comes, your foul-weather friend knows you are good old reliable you, the one who will listen when no one else will, and they act like you're their only friend. Don't expect the same in return either. When you've got a problem, they'll usually tell you not to bring them down.
by Reni Winter May 22, 2006

by Jennifer the yowie hunter August 6, 2018

Akin to a party foul, 4 A.M fouls are offenses against your friends, strangers and even yourself. Accumulating too many 4 A.M fouls will usually end with either a.) a severe warning by a friend or aware citizen or b.) an arrest by an officer of the law.
4 A.M Foul #21: Mailbox baseball in your own neighborhood
4 A.M. Foul #40: Entering a bar at 4 A.M already drunk.
4 A.M Foul #3: Waking up in your best friend's bed after a drunken night together and puking all over him/her.
4 A.M. Foul #40: Entering a bar at 4 A.M already drunk.
4 A.M Foul #3: Waking up in your best friend's bed after a drunken night together and puking all over him/her.
by Bboy Maestro June 1, 2010
