Merriam-Webster Collegiate Dictionary - shtick

 also schtick or shtik  noun  Etymology: Yiddish shtik pranks, literally, piece, from Middle High German stucke, from Old High German stucki; akin to Old English stycce piece, Old High German stoc stick — more at stock  Date: 1959  1. a usually comic or repetitious performance or routine ; bit  2. one's special trait, interest, or activity ; bag he's alive and well and now doing his ~ out in Hollywood — Robert Daley  • ~y adjective