Top Definition
A sexually desireable women above 40 years of age. The Fineasaur species is not someones mother, therefore disqualifing them as a Milf. The Fineasaur can be part of the Cougar subspeciaes so long as thier bra size is a "C" cup or above. Some species are known to produce massive squirting cougasms.
Dude, there are so many fineasaurs that come thru the drive through at Starbucks where I work it's unbelieveable. Friend- get numbers my peeps and see if they have some fineasaur friends.
by iautoknow March 08, 2010

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