"shtick" refers to a person's unique style, gimmick, or characteristic behavior that helps them stand out or be remembered by others. It often involves humor or a particular manner of performing. Full definition
The comedy itself is run - of - the - mill and some appearances, like that of Sherri Shepherd as Hart's wedding planner, you have to question why the whole shtick of him constantly arguing with her is really there. (movieswithmae.com)
And he's not wrong, adopting the men - on - top routine as a kind of shtick for those pre-politically correct times. (variety.com)
Vincent Cassel is very strong in a supporting capacity even though he pretty much does the same shtick in the majority of his scenes. (shockya.com)