Definition of "Smack" :

noun: the act of smacking something; a blow delivered with an open hand

noun: an enthusiastic kiss

noun: street names for heroin

noun: a sailing ship (usually rigged like a sloop or cutter) used in fishing and sailing along the coast

noun: the taste experience when a savoury condiment is taken into the mouth

noun: a blow from a flat object (as an open hand)

verb: press (the lips) together and open (the lips) noisily, as in eating

verb: deliver a hard blow to

"The teacher smacked the student who had misbehaved."

verb: kiss lightly

verb: have a distinctive or characteristic taste

verb: have an element suggestive (of something)

"His speeches smacked of racism."

adverb: directly