verb
smacks; smacked; smacking
[+ obj] to slap or hit (someone or something) hard
always followed by an adverb or preposition :to set or hit (something) on or against something else so that it makes a loud noise
US informal :to kiss (someone) loudly
smack of
[phrasal verb]
smack of (something) :to seem to contain or involve (something unpleasant)
smack your lips
to close and open your lips noisily especially before or after eating or drinking
noun
plural smacks
[count] a hard slap or hit
a loud noise that is made when something hits something else in a forceful way
informal :a loud kiss
noun
[noncount] :a small, noticeable amount of a particular thing
adverb
informal :exactly or directly
noun
[noncount] slang :heroin - compare 2smack 3smack 6smack
noun
plural smacks
[count] Brit :a small fishing boat - compare 2smack 3smack 5smack