1) Term of endearment for a woman who has just discovered she likes to engage in cunninlingus, so much so that she has a few different girlfriends or new girlfriends each week.

2) Nickname for a woman who has an insatiable appetite for eating pussy.
Lora you are such a snatchasaurus!
by Miss President April 20, 2007
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An unusually large or jurassic sized vagina.
While watching an " x-rated "movie, A closeup of the girls vagina revealed a watermelon inside it so large only a snatchasaurus Rex could swallow it..
by Adam210001charlie February 25, 2018
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