BFTIAA 

best friend turned into an alcoholic

After prom, you totally turned into my BFTIAA

BFTIAA by blame it on alcohol May 24, 2009

bftiab 

BFTIAB means Best friend To Infinity and Beyond

if you mess with me you mess with my BFTIAB, bitch

bftiab by do you know dewey September 4, 2018

bftiab 

Stands for
Best Friend That Is A Boy

Hey, is that Andreas ?

Yea it is! He is my BFTIAB !

bftiab by greatfriend December 28, 2011