Definition of "Rap" :
noun: the act of hitting vigorously
noun: a reproach for some lapse or misdeed
"It was a bum rap."
noun: genre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompaniment; several forms of rap have emerged
noun: voluble conversation
noun: the sound made by a gentle blow
noun: a gentle blow
verb: talk volubly
verb: strike sharply
"Rap him on the knuckles."
verb: perform rap music
verb: make light, repeated taps on a surface