To respond to an insult by answering while
clapping your hands in rhythm of your words, in order to
add empahasis.
Common among outraged ghetto women...
He told her to get out of his
face. She gave a clapback by saying "I(clap) will(clap)
get(clap) in (clap) your(clap)
face (clap) when (clap) ever (clap) I (clap) want(clap)