Top definition
Really, REALLY, REEEEEALY big asscrack. Like... Asscrack so big, it should have its own zip code.
*fat guy walks by*

Guy 1: Dude... Look at that masscrack!

Guy 2: What's it's area code? I'ma prank call it.
by IFindYouFunny June 20, 2010
Get the mug
Get a Masscrack mug for your buddy Helena.