look up any word, like half chub:
 
1.
crony, close pal, buddy, trusted friend, adviser. Literally, "godfather" in Italian.
You can read about all the cold blooded goombata in Nicholas Pileggi's Wiseguy.

Christian and Anthony are my goombata.
by Jiggle Shopper May 28, 2012
 
2.
An Italian American's mistress, but must be married ( the husband )
Tony's wife caught him with his goombata.
by jersey's goomba August 14, 2009