Like a Fag Hag, it's a dude who hangs out with only lesbians hoping to be their inevitable dick supply.
I'm really horny and could use some dick tonight. I'm going to call my Fish Monger to come over and service me.
by BlackRex October 10, 2021
Get the Fish Mongermug. by Zartanis July 16, 2009
Get the booby mongermug. by J-massa April 8, 2007
Get the Jew Mongermug. by pat May 13, 2005
Get the Poon Mongermug. the jerk who goes straight for the chips piled high with delicious toppings (cheese, sour cream, etc.) leaving all the lame naked chips for you
by cmsluvnachos August 19, 2010
Get the nacho mongermug. 
