Definition of goombah:
(n) :
(US, slang) A companion, pal, close friend, or associate, especially among Italian-American men. It sometimes has the connotation of an older friend who acts as a patron, protector or adviser.
(n) :
(US, slang, derogatory, ethnic slur) A person of Italian descent (often implies the person is connected to Italian organized crime)
(n) :
Alternative form of gumbe, a Jamaican drum. [A style of music from Guinea-Bissau which is primarily vocal and percussive.]