Mnuck is an hinglish word that is generally considered profane which, in its most literal meaning, refers to the act of sexual intercourse. However, by extension it may be used to negatively characterize anything that can be dismissed, disdained, defiled, or destroyed
It is used to express surprise and shock GENERALLY !!!
wtm !!! i lost my assignment paper
wtm !!! u won so cool
wtm !!! i cant believe u took trouble to make a surprise party !
john: lol...wtm. what did he do?