1)The belief that having "shm" as a prefix of a word makes it Jewish/Hebrew slang

2)The belief that adding "shm" in front of a word presents it as having no value to the speaker. Usually used directly after the original word.
-Not tonight honey, I'm too tired.
-Tired shmired! I had a long day too, you don't hear me shmalowzing about it. Night after night it's the same old shmuck with you.
-Woah, "shm" complex much?
by mmmoneys April 16, 2009
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He wasn't sure what she was after SHM, or SHMM .
by Tēbagh Debalzaque June 22, 2023
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