foul ball 

A sexual situation where the male is going to town own a girl. Just before blowing his load he sticks his fingers in her ass and smears the contents on his balls. He then shoots his load onto her face to make a nice line and then teabags her. His balls will either go left or right and thus the foul ball.

teabag
sexual
ass
foul

foul ball by The V.I.P. January 19, 2005

foul weather fan 

A sports fan who only supports his team when they struggle. They routinely root for the under dog.

It can also be applied to fans of other things, in particualar indie music. When a band makes it big, their foul weather fans will write them off as "sellouts."

Opposite of fair-weather fan, one who only supports a sports team when they do well.

Bob only liked the Giants until they won 88 games in 2009. Now that they won the 2010 World Series, he won't go to games any more. What a foul weather fan.

Jay only liked Indie Snob Band #675 until they made it big with their hit "Two Chords" which succeeded to to the lack of Dave Navarro and his 2 chords of bland on the airwaves.

foul weather fan by Downvoting Victim June 12, 2011

Foul King 

The Foul King (반칙왕, Banchikwang)
A great korean comedy written and directed by Kim Ji-woon in 2000.

"Foul King’s humor is subtle and dry for the most part, and it occasionally lapses into absurdity to great effect."

Foul King by badshogun December 10, 2009

Foul on 

To punch someone in the face. Coming from sports terms, which means foul play.

Lars: "Get away from me, punk!"

Jamie: "'Punk'?!, homeboy, don't make me foul on you!!!"

Lars: "Get away from me, punk!"

Jamie: "'Punk'?!, homeboy, don't make me foul on you!!!"

Foul on by Goldbrier901 September 8, 2010

Foul Doo-Dah 

The act of masturbating so much in one day that the friction created causes the skin to tear and for the penis to begin to bleed!

Joe, I need you to check my penis, I had a foul doo-dah last night and i don't think it has stopped bleeding!

Foul Doo-Dah by I-Can't-Get-A-Damn-Name April 12, 2011

Foul Hook 

To unintentionally get laid randomly. Going to a club or party without any intent to bang but just by chance you meet a willing sexual partner.

“ How did you meet your wife? “
“ I foul hooked her at a club a while back. She was at a bachelorette party, I was bar hopping, and we met randomly at the shitter”.

Foul Hook by Shafe98 July 15, 2018

foul wind ensemble 

A gathering of four or more friends or acquaintances who suffer from extraordinary flatulance.

I'll think we'll skip the foul wind ensemble tonight if we serve something other than chili.

foul wind ensemble by Lizard boots and Lipshitz June 10, 2018