Top Definition
Acronym for "Best Friend For Life Who's Also A Teacher."

A teacher (usually young) Who is cool, nice, funny, and caring who you develop an almost older sibling/ parental/ best friend bond with.
Darren- You call your History teacher by his first name?
Lizzy- Of course! He's my BFFLWAAT! :)
by ILoveMyBFFLWAAT March 12, 2011

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