The opposite of a Cougar, usually extremly underage in the situation, but extremly hot.
Two guys in a bar, a really young underage girl walks in.

Guy 1: Dude, check her out!!
Guy 2: Woah, she is... really young...
Guy 1: No duh, she is a major gerbil!!
by Oakieman May 25, 2009
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The opposite of cougar.
This was made up by SNL.
"Watch out guys, they're Gerbils."
"What's a gerbil?"
"The opposite of a cougar."
by SnL13 April 12, 2009
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Small Seizurey Mammal who watches sexual acts of unspeakable horror
That gerbil was all seizurey, & uh stuff
by Gerbtaro April 26, 2003
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Most amazing cutest animal of them all which must not be used in the art of bum fucking
by Charli April 21, 2004
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Slang, used to describe a very cute girl, which is not to be confused with a hot girl. And cute, though she is, like her rodent counterpart, she likes to have a lot of sex.

This fact is only known either through personal experience, or the account of a close friend.

Said with annunciation in most occasions such as: gerrrrrbull.
A: Man, you'd never know it, but Justin's girlfriend is a gerrrbil.
B: Yea man, she likes to get f*cked.

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A: I'm gunna find me a gerbil tonight.
B: Yea, playa, tonight we goin gerbil stompin.
by Ayyo Blake February 13, 2007
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Getting Extremely Revved Beyond Intensity Living Strong
Person #1 : hey, are you ready for this?
Person#2 : yea man, forget HAM, I'm going GERBILS!
by BlueSapphire March 19, 2016
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Gerbil, small, intelligent, superior mammal species.
How dare you all show contempt for this sacred creature!! Gerbils are not to be 'used' for 'homosexual pleasures'. They are sovereign, sacred animals. Gerbils have much to teach us, which is why some have volunterred to be pets for humans, even tho humans are mostly mentally and emotionally retarded with minimal awareness and intelligence.
by Anonymous November 8, 2003
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