CILF stands for Cat I'd Like to Fuck.
Person 1:Dude your cat is such a cilf!
Person 2:What?
Person 1:Cat I'd Like to Fuck.
Person 2:...
by John Argon July 13, 2006
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Cop I'd Love to Fuck or Cop I'd Like to Fuck
Officer Odeetull is a total CILF. I can't wait to give him a rusty trumbone later.
by Madison Ryder September 7, 2005
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Jason: Yo Freddy, nice Benz kid, what a CILF.

Freddy: Yo Jason, keep your cock out of my gas tank. And don't tough my leather seats with those gay as finger blades, you crazy faggot.
by Eapert McDangles July 7, 2006
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Chemist I'd Like to Fuck.

Yes, there is definitely a lot of chemistry going on. The practical sort.
Person 1: "Have you seen that guy use NMR spectroscopy?"
Person 2: "I understand completely. I'd say either he is a CILF, or he's completely hijacked my serotonin receptors."
by Xraycrystallography August 23, 2011
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Oh man, did you hear John and Erin got married? Now there's a CILF.
by Don Something December 12, 2007
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