Top definition
a pilots term meaning look behind you
can also mean to check the ass on a chick or check out a chick out behind you
check six and check the six on that chick
by check six January 26, 2006
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1. In fighter pilot parlance, to check ones tail for enemy aircraft-the aircrafts 6 'o clock 2. To check ones ass for dingleberries after an especially powerful shit
by Labordehater February 09, 2003
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