Used to describe an event where a woman's large breasts smack against someone, something or even themselves.

Alternatively, it can be used the other way around to describe the action of actually smacking an individual or set of titties.
Ex. 1

Without looking, the french teacher, Ms. E. Norma Stits quickly turned around and tit smacked lil Timmy in the face, knocking his glasses off.

Ex. 2

Shut the fuck up or I'll tit smack the shit outta you with my dick!
by Youknowwhoiam2 January 23, 2014
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