Top definition
Not a boyfriend or girlfriend. Someone you're dating but not exclusively. A main jank is the one you spend the most time with and sleep with, almost dating but without the official title. Side janks are the others that you use for money, drugs, rides, sex, etc.
My main jank had to work tonight so I called my side jank to take me to the bar and buy me drinks.
by Ksto September 19, 2013
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