Top Definition
An adjective used to define a person,specifically a guy,who likes to cheat on his girlfriend regularly and only keep her and use her for certain benefits.
Oh look,he's cheating on his girlfriend....what a musaish thing to do!

You shouldn't act musaish,you should be loyal to your girlfriend!
#traitor #judas #musa #womanizer #man-whore
by musaish November 29, 2011
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