Chest Bum

When a bird has boobs that are so big, it looks like she has a bum on her chest.

Lad 1:' Fook me son look at the size of those bad boys'

lad 2; 'holy shit, they so big they loook like a bum'

Lad 1: 'thats classic chest bum material'

Chest Bum by WellsTownHero November 10, 2010

chest bump

when two or more people jump into each other and bump their chests, as a fiendly bump usually. For females this may be painful.

Nicole and Josh did a chest bump. Nicole was hurt badly though, she had to cry because she squashed her boobs which is painful/.

chest bump by llniccill February 19, 2007

greesy chest bump 

When you cum on a girls chest, then she jumps on you and rubs it all over your chest

I just got back from giving my boyfriend a greesy chest bump.

greesy chest bump by dr. cum March 15, 2011

chestbum 

chestbum is the cleavage of the woman who has wide set breasts and heavy duty cast iron underwire, causing the appearance of an arse on her chest.

Check out her tits! They've sagged with age and she's hiking them up too high causing them to splay into chestbum.

chestbum by LeniMcPoopies October 31, 2009