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1.
A pair of breasts on a woman that resemble the cheeks of a buttocks.
1. Katie has huge butt boobs.

2. When I took a picture of that girl over there, she has such large breasts that they resemble a butt on her chest.
by peterpeterpumpkineater November 05, 2007
 
2.
A pair of breasts on a woman that resemble the cheeks of a buttocks.
1. Katie Miller has huge butt boobs.

2. When I took a picture of that girl over there, she has such large breasts that they resemble a butt on her chest.
by peterpeterpumpkineater October 30, 2007
 
3.
A pair of breasts on a woman that resemble the cheeks of a buttocks.
1. Katie Miller has huge butt boobs.

2. When I took a picture of that girl over there, she has such large breasts that they resemble a butt on her chest.
by peterpeterpumpkineater October 30, 2007
 
4.
A butt cheek with two large round shaped warts at the bottom.
Ey puta why these tetas have a hole in between?
by _insertnamehere_ April 04, 2005
 
5.
When your cleavage looks significantly more like your rear.

Most commonly seen in pictures of large girls who try to take pictures of themselves for their Myspaces.
Dude, I just saw this girl with buttboobs!
by Maggie Maric April 23, 2010
 
6.
(noun) A buttboob is one of or belonging to the buttboobian heirarchy. The buttboobian kingdom ranges from queens and chivalry advisors to wenches and village idiots.

(adj)A way of acting; immaturity
Buttboob: Is he a buttboob?

Buttboobish: He acts so buttboobish sometimes.
by l3uth c April 16, 2004