This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Slang A characteristic attribute, talent, or trait that is helpful in securing recognition or attention: waiters in tropical attire are part of the restaurant's shtick.

n. Slang An entertainment routine or gimmick.

n. A characteristic trait or theme.

n. A gimmick.

n. A person's special talent, line of business, or habitual activity.

n. A comic routine or a specific gag inserted in a show for laughs.

n. (Yiddish) a contrived and often used bit of business that a performer uses to steal attention

n. (Yiddish) a devious trick; a bit of cheating

n. (Yiddish) a prank or piece of clowning

n. (Yiddish) a little; a piece

"I kept getting distracted by how villain Growing Man looked like a Sentinel, although his shtick is the classic “every time you hit him, he gets bigger, so how do you stop him without engaging him directly?”"

shtik   

stage business    byplay    business    trick    fast one   

Crick    Dick    Frick    Hick    Mick   

spiel    blathering    obtrusiveness    mystique    rodomontade