a greasy car salesman, slimy weasel, someone who steals all of the good shifts from other employees
there goes mark again, taking all of the good shifts. What a shmuck.
someone who has made silly and or idiotic move/assumption
man1: he said that i’m mentally ill
man2: wat a shmuck
When a lad leaves lads for his bird
he left us for his bird the shmuck