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

Chestburster Day 

On April 23rd, all adults no matter what gender or how big their boobs are. Must be facehugged and pregnant with a chestburster.

This is a parody holiday that was inspired by Alien Day, an annual promotional event dedicated to the Alien franchise, held on April 26.

"Today is Chestburster Day!"
"Did you bring your alien egg for Chestburster Day?"

Chestburster Day by Xenolover101 April 13, 2021

chestburger 

1. n. - the act of shitting on anothers stomach and/or core region during sex, usually under the influence of alcohol and/or crazy bitches syndrome
2. n. - one who gives chestburgers

1. I heard they were about to get dirty and she gave him a big old chestburger.
2. Hey, did you know? He's a chestburger!

chestburger by psychadelicatessen January 27, 2009

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

Chestburster Day 

On April 23rd, all adults no matter what gender, how big their boobs are. Must be facehugged and pregnant with a chestburster.

This parody holiday was inspired by Alien Day, that is an annual promotional event dedicated to the Alien franchise, held on April 26.

"Hey It's Chestburster Day!"

"Got your alien egg for Chestburster Day?"

Chestburster Day by Xenolover101 April 13, 2021

chestbutt 

Another name for boobs if there is a crack in between. Resemblance of a butt. A compound word.

You have a nice chestbutt. I fluv your chest butt. Can I feel your chestbutt?

chestbutt by Jarod "Streetrunner" Reisin August 11, 2007

Chestburster

The accident that can happen during a titjob with two overly-enthusiastic parties: when either a man thrusts too hard, or a woman pumps too hard, a tip of the man's penis may hit the woman in the chest with enough force to cause both parties great physical pain.

This usually tends to happen when both parties are young people, as young men achieve harder erections, and young women (especially ones who haven'd given birth yet) have a lower pain tolerance.

Renee: "Lucy, what's that on your chest?"
Lucy: "Well, I gave Kevin a titjob and..."
Renee: "Oooh, was it a chestburster?"
Lucy: "Yeah. A chestburster."

Chestburster by Helel ben Shahaar August 26, 2019