Top definition
the top of your ass crack that usually reveals itself when you bend over.
i.e. builders bum
"dude, check out the chicks micklepock bum crack ass cleavage... i'd love to give it a lick."

"god damn i've got an itchy micklepock bum crack ass cleavage."

"woah!!! mate, pull up your trousers. your micklepock bum crack ass cleavage is giving me the stink eye"
by Lukris Aaromatt January 15, 2009
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