Beer Induced Leg Failure. A condition where by the sufferer falls over and hurts themselves or looks stupid. Condition is caused by endulging too much in the glorious amber ale we know as beer. Symptoms which indicate a case of BILF is iminent include swaying and stumbling.
Jamie fell victim to a severe case of BILF during his night out at the pub.
by SmithsonianWA July 21, 2006

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Blonde I'd like to fuck
Matt that girl you hang out with, is such a BILF!!
by djmonarch August 18, 2005

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Boobs I'd like to fuck.
Man, those are some sweet BILF's.
by nantinkspink November 26, 2009

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Acronym: Brother I'd like to fuck.
N. Term applied to hot (usually older) brothers of best friends (bfs) or aquaintences. Used when around said targets sibling or other friends who know of siblingship.
Akin and sometimes used in place of the rarer Filf (Family I'd like to fuck; i/e:cousin, step siblings ect., aunts, uncles, cousins inlaw - of friends)
Derivitive of Milf
Note: does not denote an incestual connotation.
Jason: hey (passing to the kitchen)
Jess(studying, overtaken by jasons hotness): Your brothers a bilf.
Lynn: what?
Jess: Is he seeing anyone?
Lynn: What!?....your fucking crazy.
by A.L.F. August 29, 2006

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Acronym: "Beast I'd Like (to) Fuck"

A beast, whether tame, wild or mythical, that a human individual sees as attractive enough to want to have sexual intercourse with them. Just because they're non-human doesn't mean that they don't need a spark in their love life.
That ewe on her own in the corner is a right BILF.

Last night was awesome - I met up with a whole load of likeminded individuals and we whiled away hours comparing BILF conquests.

A BILF hunter aids others in their quest for top-notch BILF usually cataloguing possible BILFs on their internet site.
by The one and only BILFhunter June 01, 2006

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boy i'd like to fuck
Justin's such a bilf! I'd love to stick my big cock in his tight little virgin ass!
by boytoylover June 11, 2003

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Brotha' I'd like to Fuck

A black man you would like to have sexual intercorse with
*at the night-club*
Friend 1: Oh my god! Do you see that black guy over there at the bar?
Friend 2: I know! He's one sexy BILF...
by Ni Angelo December 15, 2009

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