1 definition by SwimmChick247
When you can see the top of a male swimmer's butt crack because his speedo is too small or too tight. Can be sexy on hot college swimmers.
-Joe needs a bigger suit, he has major butt cleavage.
Girl: Ooh, check out that swimmer!
Girl 2: Wow yeah, he has hotttt butt cleavage!
Girl: Ooh, check out that swimmer!
Girl 2: Wow yeah, he has hotttt butt cleavage!
by SwimmChick247 December 6, 2010