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 9, 2015
Get the best friends on the sidemug. This is the guy that will make your heart stop, make your eyes shine, shower you with kisses and always stand up for you. Never let this guy go. Ever.
by Lucky girl 4ever December 24, 2011
Get the Best Boyfriend Evermug. The best boyfriend in the world is someone who is always there for you when you need to laugh, when you need to cry, or when you're falling apart. This boy would stick by your side through everything and be your number one supporter, doing everything possible to make you the happiest you can be. He'll love you more than imaginable.
Aaron Michael is without a doubt the best boyfriend in the world and keeps his girl flying on cloud 9.
by sand1214 August 23, 2014
Get the Best boyfriend in the worldmug. 1. When a person has a thing for best friends, and time after time develops feelings or crushes on their best or close friends.
2. A person who always seems to date people who started out as their best friend.
3. a person who is most attracted to their boyfriend/girlfriend when they are acting like "just" friends.
2. A person who always seems to date people who started out as their best friend.
3. a person who is most attracted to their boyfriend/girlfriend when they are acting like "just" friends.
Emily has such a best friend fetish! shes dated two best friends, hooked up with three, and used to have a crush on me!
by ChIc3nLiiV3RfoLYF3szzieeszz July 24, 2010
Get the Best Friend Fetishmug. 
the guy who you can tell everything to. the person u can face time all the time and never run out of things to talk about. the person who tells you when you’re being a dramatic bitch. the person who makes fun of u all day long, yet still manages to build your confidence. the one who you’re ALWAYS shipped with. if you stop being friends w this person, it hurts more than anything else in the world
by hose mad August 1, 2019
Get the guy best friendmug. Something that will never exist, especially given the fact that everyone thinks that thier own personal fave is "teh best band evar!1!1!!1!one!".
by nikkan_hanil July 29, 2004
Get the best band evermug.