(rap) v. rapped, rap·ping v.t.
1. To strike sharply and quickly; hit.
2. To utter in a sharp manner: with out: to rap out an oath.
3. Slang To criticize severely.
—v.i.
4. To strike sharp, quick blows.
5. Slang To have a frank discussion; talk.
—noun
1. A sharp blow.
2. A sound caused by or as by knocking; specifically, such a sound ascribed to the agency of spirits.
3. Slang A reprimand; blame; also, consequences: to take the rap.
4. Slang A prison sentence.
5. Slang A severe criticism.
6. Slang A talk; discussion. See synonyms under BLOW².
—adjective Slang Marked by frank discussion: a rap session. [Imit. Cf. Dan. rap, Sw. rapp.]
—rap′per noun

(rap) v.t. rapt or rapped, rap·ping
1. Obs. To snatch.
2. Archaic To seize or transport as with ecstasy; carry away: now current only in the past participle rapt (sometimes erroneously spelled wrapt). [Back formation <RAPT]

(rap) noun
A counterfeit coin used as a half-penny in Ireland in the 18th century; hence, anything worthless: I don't care a rap. [Origin uncertain. Cf. G. rappe, a small coin.]

(rap) noun
A skein of yarn containing 120 yards. [Origin unknown]