A female, usually older, who possesses a large crusty cavity and uses it to entrap young teenage schoolboys. (verb: Kavvied)

Student 1: Woah did you see that new English Teacher?

Student 2: Yeah I bet she's a real Kavvy.

Student 1: Man I am so tired today..

Student 2: Why is that dood?

Student 1: Got Kavvied last night..
by xgenshinx September 17, 2008
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