Top Definition
A large gap between a woman's breast causing men to stare for the wrong reason.
Dude A: Did you see Wendy's rack? Those are at least C cups.

Dude B: Yeah but she's got a case of major cleav.

Dude A: Hmm, I'd still tap it. It is pretty weird though.
by Scrubbie March 04, 2009
5 Words related to major cleav

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