A TMIF is a friend who won't shut up and tells
TMI/too much information all the time. Gossips about everything, even themself.
Pronounced TEE-miff.
*TMIF walks away*
Girl #1: Are you friends with her?
Girl #2: No way, she's such a friggin' TMIF. Last week she spent an hour telling me what douching was like!
Girl #1: Ew.
