1 definition by jay-sin jay

Top Definition
When guys spend the night out together and return the following day usually to a scornful wife. man-jamas can also be a term which describes a man's gay nightwear.
"Hey jon, i think it's time for the guys to go out and get trashed again!" I said excitedly.
"you mean a man-jama party?" he asked.
"yep, get out your yard pass and stop being a tit, gonna be cra cra!"

He next inquired "should i bring my man-jamas?"
"fmli thought to myself.
by jay-sin jay April 07, 2010

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