The opposite of a cougar. A young girl seeking an older man.
I swung by to pick up my kid at middle school today, when this smokin' gerbil gave me her number!
by jmhunter April 12, 2009
1. n. A small rodent that has been domesticated and is now widely found in the classrooms of elementary school-aged children.

2. n. A young girl who likes older men. These girls will woo the men with their large eyes and pouty faces. Opposite of a cougar. The man dating this girl could be known as a dingo.
1. Jenna's 2nd grade class just got a gerbil name Mr. Snuggles.
2. DAYUM. That gurl be a gerbil all the way holmes!
by ISABEAST April 13, 2009
the opposite of cougars. when a younger girl likes an older guy.
"hey look at that chick over there. shes totally checking you out."
"she must be like 15! she is such a gerbil."
by colobumo August 26, 2009
Our name for the Eurasian species of this mammal, which is noted for defending its burrow like a knight of old, may come from the gerbil knightly emblem. The creature's white head with a broad black stripe on each side of the snout may have brought to mind a gerb, hence gerbil. Good evidence supporting this theory is that an earlier name for the animal was gauson, which comes from the Old French word gaucenc, usually referring to a white patch on a horse and also meaning “gerbil.” gauson is first recorded in 1373.
by Karlos April 2, 2004
The opposite of "cougar." When a really young girl wants a way older guy...GROSS
Watch out, she's a gerbil! It could be illegal dude.

Don't buy her a drink she's a gerbil.

That gerbil married me then divorced me and took all my damn money!
by Herbert Swangstatus April 21, 2009
Small Seizurey Mammal who watches sexual acts of unspeakable horror
That gerbil was all seizurey, & uh stuff
by Gerbtaro April 26, 2003
Most amazing cutest animal of them all which must not be used in the art of bum fucking
by Charli April 21, 2004