A strong and complex nonsexual relationship between two or more females that is greater than being BFF. Similar to a bromance.
If Jennifer Aniston and Courteney Cox weren't strait I would swear they were lesbians. I guess they are just breasties.
by Lipsmackinggood December 12, 2012
Kim: Hey look, it's my breastie Emma. Let's go say hi!
Mark: Breastie?
Kim: yeah, she's my bestie and has the the same breast size as me.
Mark: let's forget we ever had this conversation
Kim: Agreed
Mark: Breastie?
Kim: yeah, she's my bestie and has the the same breast size as me.
Mark: let's forget we ever had this conversation
Kim: Agreed
by I've got nothing better to do April 26, 2016
by Mrberlinnh September 18, 2014
Jenny: Chelsea, its okay if you want to cancel our plans this weekend so you can to the concert with Lea and Jill instead. I'll understand.
Chelsea: Jenny, are you serious? Pshh, girl fuck them. You're my breastie for life, our plans come first :)
Jenny: Aww, we're total breasties! :)
Chelsea: Jenny, are you serious? Pshh, girl fuck them. You're my breastie for life, our plans come first :)
Jenny: Aww, we're total breasties! :)
by Its funny girl! Nyan-ja~ June 20, 2014
by Lsears July 27, 2020
two female friends that have attractive breasts, and are comfortable enough to take a bath with each other, change in front of each other, and when photographed, usually will pose close enough for their breasts to smush against each other. ( derived from besties )
Joe: You know Megan and April have been getting close to each other, lately.
Mac: Yeah I know, have you seen Megan's profile pic?
Joe: The one with both of them in it?
Mac: Uh-hun, they are such breasties.
Mac: Yeah I know, have you seen Megan's profile pic?
Joe: The one with both of them in it?
Mac: Uh-hun, they are such breasties.
by handsomevirgil November 07, 2009