Smehck
Nica slang used to describe sucking teeth. An action of utter disgust, annoyance or frustration. Also used as a gesture of disapproval.
Ex:
Person 1: Is it 5 o'clock yet?
Person 2: Not yet.
Person 1: Smehck!
Person 1: Is it 5 o'clock yet?
Person 2: Not yet.
Person 1: Smehck!