The act of gently smacking someone's face in a way of deterring unwanted amorous attempts against one's person.
"She'll smecks anybody who tries to touch her boob."
An increasingly common word denoting any kind of sexual act. Presumably born from a rather lazy attempt to constitute a somewhat censored version of the regular s-word. Similar to the background of words such as jeebus or fawk.
Care to join me in the closet for some hot smecks?