Top definition
besty fo life... a friend u would never give up... no matter what. someone you can share secrets with. and just be a nerd (even if they r bein a booty about u bein a nerd! ) but w.e
jill: hey are u gonna come to the mall with me this weekend ?

sarah:no duh you're my besty fo life !!!!!!
by meli193455 August 07, 2007
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