FURK is an acronym for "For Unlawful Rectal Knowledge". FURK is when a man is having sexual intercouse with a woman from behind or doggy style in her vagina, and with one quick motion puts his penis in her anus and plays it off as a total accident. A man will FURK his woman in an attempt to see her reaction to anal sex.
by Turdpipe June 9, 2013

Having sex while twerking. Fuck-twerking.
by RUUFUS August 28, 2013

hottiegurl:lik omg did u c dat new britny concert OMG
supachick:i saw it and was lik 'omg wat teh furk'
hottiegurl:LOL furk
supachick:shut teh furk up u furkin faker
hottiegurl:FAKER OMG SHUT UP
supachick:furk face
hottiegurl:i am so not fake i meen omg i by all my clos at 'young chikiez'
supachick:ooooo wow stil fake
hottiegurl:FURK
hottiegurl has furked off
supachick:i saw it and was lik 'omg wat teh furk'
hottiegurl:LOL furk
supachick:shut teh furk up u furkin faker
hottiegurl:FAKER OMG SHUT UP
supachick:furk face
hottiegurl:i am so not fake i meen omg i by all my clos at 'young chikiez'
supachick:ooooo wow stil fake
hottiegurl:FURK
hottiegurl has furked off
by TheWiggidy December 4, 2003

Dude 1: "Dude, did you just get yourself a brand new phone? You just bought one last week! Oh my god, you're such a furk."
Furk: "Furk?"
Dude 1: "F U, Rich Kid."
Furk: "Furk?"
Dude 1: "F U, Rich Kid."
by iamnotafurk November 6, 2012

by Scotthew July 2, 2005

Doing something for fun that happens to coincide with your field of expertise. Similar to "geeking out", but at a heightened level of intensity because it engages both the work ethic and the recreational desires of the participants.
In the middle of the party, Cosmo and Marty pulled out a laptop and started furking on a computational fluid solver for optimizing mixed drinks.
by Casey Muratori September 30, 2005

by Terek Eyson October 8, 2003
