This is east coast Jewish
slang meaning to "look' or "
shop" in a store, business or any place where goods are for sale without buying.
"Shmyer" also can imply being a "bottom
feeder" or one that is always looking for sale items and is not hampered by any guilt to ask to purchased an item for below bargain or advertised prices.
"
Hello, may I
help you?". "No that's OK, I'm just shmying around."
" What did you get at
Macy's?" " Nothing I just went in to kill time and shmy."