Acronym for "Alien I'd Like to Fuck".
A crucial staple of Science Fiction, rendering it watchable.
Pronounced "alf", but not to be confused with the puppet from the 1980s TV show, who is not an example of an AILF.
Examples of an "AILF":
The chick Steve Guttenberg does (in an alien sort of way) in "Cocoon".
Natasha Henstridge is "Species".
"Orion slave girl" (the green chick) in "Star Trek".
by beckynot July 15, 2013
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Hey Karl, check out the long proboscis on that insect lovin' mammal. A prime example of an AILF!
by Roger McTodger November 16, 2004
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"Android I'd Like (to) Fuck"

An extremely attractive android that you'd like to have sexual relations with. Specifically dealing with Star Trek.
"OMG, look at Data from Star Trek: The Next Generation! Brent Spiner is such a cutie!!!"

"Hell yeah! I love Brent Spiner as Data. He's a hardcore AILF!!!!"
by Data_girl August 16, 2011
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walking into common room Salute: Fist beating heart

your a bit AILF

A word used by the new wave of sixth formers
by bob dylan May 6, 2005
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Hey man, I saw this one armed chick on the subway today total AILF, I bet she could tickle my a$$hole with her baby arm while she blows me...
by jlam923 July 11, 2011
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stands for “astronomer i’d like to fuck”; first used in the movie “Don’t Look Up” in reference to Randall Mindy.
Randall Mindy is an AILF!
by mindyailf February 23, 2022
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Ancestor I'd like to fuck

When a GILF just isn't enough
Damn, my grandma's mom is a real AILF
by isachok January 21, 2019
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