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
5 Words related to cleft boob

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