The "persian"(as in with a persian accent) way to say "shotgun". Often used in first person shooter games such as Halo, Call Of Duty, and Battlefield Bad Company. This is usually accidentally said when joyful. Unusually, this is also a substitute of "okay".
American guy #1: Okay man, let me go for sniper.
Persian guy #1: No problem, i'll go for svatgun- ermm i mean shotgun.