boyfriend jacket 

a jacket/coat a girl wears that belongs to her boyfriend. she'll make up any excuse (the most common, "i'm cold!") to get her boy to give her his jacket, so she can wear it everywhere and sleep with it, therefore being surrounded by his scent where-ever she goes. then it starts smelling like her and she gives it back for a while.

jackie-"why is kelly wearing that? it's way too big for her"
stacy-"oh, that's just her boyfriend jacket. she's had it since saturday"

boyfriend jacket by 369369369 April 20, 2008

Boyfriend Jacket 

(N)A term used to describe a size of a jacket that 2 or more sizes too big.

Dude2:Dudeeee...that jacket is too big for you.

Dude1; know right man I couldn't find a smaller size

Dude2:Haha...what do you mean you couldn't find it in a smaller size, maybe you should give that boyfriend jacket back to your boyfriend

Dude1: shut up before I kill you

Boyfriend Jacket by NadnerbNad2 October 6, 2017

more than a friend less than a boyfriend jacket 

pretty much the same thing as a bf jacket
except hes not ur bf hes ur friend that u like alot i got one of these jackets

niki:omg nicoles got a more than a friend less than a boyfriend jacket
kasey:omg ur rigt isnt that marks

more than a friend less than a boyfriend jacket by =.): britbby March 13, 2009