The act of a subset of people from a group of mutual friends engaging in a side friendship.
Also shortened to "BFOTS"
Also shortened to "BFOTS"
"Oh so y'all hung out last night without ME? Talk about Best Friends on the Side!"
"Wait where was my invite when yall was BFOTSing?"
"Wait where was my invite when yall was BFOTSing?"
by Kassieme July 09, 2015
Get the best friends on the sidemug.