2 definitions by KM and AH

Top Definition
Referring to the unnatural divide created by breast implants, birth defects, or excess testosterone during pubescent development (which can also lead to the elongation of the butt crack). The area separating the breasts creates an unattractive y-shaped cleavage line. This commonly brings out unattractive characteristics in the affected females personality, such as: a chameleon type personality issue and delusions of grandiose fighting skills.
"That chick has some nasty cleft boob." "Would you, please, hold my umbrella in your cleft boobage?" "My cell phone just fell in your cleft boob."
by KM and AH June 09, 2008
Referring to the natural and plentiful breasts of a C-cup or larger, only when in the act of copulating in the valley of cleavage. This act is very common in Colorado, Ohio, and Maryland amongst young, Swiss exchange students from middle class families.
"Jabanger n jabongos rr jabutt?" "I got her in jabongos."
by KM and AH June 09, 2008

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