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.