rapping

n. act of a person who raps; communication using sound of knocks

v. knock, tap, strike quickly; criticize, scold, rebuke; perform rap music; talk, have a conversation (Slang)

Rapping is the rhythmic spoken delivery of rhymes and wordplay, one of the central elements of hip hop music and culture. Although the word rap has sometimes been claimed to be a backronym of the phrase "Rhythmic American Poetry", "Rhythm and Poetry", "Rhythmically Applied Poetry", or "Rhythmically Associated Poetry", use of the word to describe quick and slangy speech or repartee long predates the musical form.
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(p. pr. & vb. n.)
of Rap
  

Noun
1. a reproach for some lapse or misdeed; "he took the blame for it"; "it was a bum rap"
(synonym) blame
(hypernym) reproach
2. a gentle blow
(synonym) strike, tap
(hypernym) bump, blow
(derivation) tap, knock, pink
3. the sound made by a gentle blow
(synonym) pat, tap
(hypernym) sound
(hyponym) pitter-patter
4. voluble conversation
(hypernym) conversation
(classification) colloquialism
5. 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
(synonym) rap music, hip-hop
(hypernym) popular music, popular music genre
6. the act of hitting vigorously; "he gave the table a whack"
(synonym) knock, belt, whack, whang
(hypernym) blow
(derivation) knap
Verb
1. strike sharply; "rap him on the knuckles"
(synonym) knap
(hypernym) strike
(hyponym) knock
(derivation) knock, belt, whack, whang
2. make light, repeated taps on a surface; "he was tapping his fingers on the table impatiently"
(synonym) tap, knock, pink
(hypernym) sound, go
(derivation) strike, tap
3. perform rap music
(hypernym) perform
(derivation) rap music, hip-hop
(classification) music
4. talk volubly
(hypernym) talk, speak