Shut yo momma up.
Usually when someone says something gay, retarded, or you just don't give a fuck about what they're saying.
Person1: Aye bro, Twilight is not that bad of a movie.....just saying
Person2: Symu !
Person1: OMG Brian goes out with Jennie now?! What a douche, going out with that tramp. I'm so gonna so kill that slut with her--