A fork of Rural Dictionary
Noun;
The girl in a group of guys that can keep pace with the men and give each of them her opinion and get the dirt on the skanks that they are dating.
Joe: Dude! Julie just told me that this girl that I'm interested in, Lisa, is a total whore!
Tom: That's what you get when Julie is your breast friend.
Similar to "friends with benefits" except not full "benefits" just copping a feel...
Johnny and Lisa are Breast Friends, its like they are going out... but are not.
when a dude is friends with that one girl who has huge boobs.
John: That girl has huge boobs bro.
Tyler: I know, she is my breast friend.
This is a similar saying to friends with benefits but emphasizing that at least one party is female.
Susie is one of my breast friends.
Two girls who are best friends forever, but have breasts (coz they are girls), so become breast friends forever
A girl who is a guy's best friend, is his breast friend
Carla and Sarah are breast friends forever!
Emily is my breast friend!, said Liam
Kelly and Maureen see each other so often, you would think they are lesbian. But they are just breast of friends.
A female friend with benefits, who has big (or at least nice) boobs.
She's not my best friend, she's my breast friend.