(1):

(n.) A blow, or quick, smart stroke.

(2):

(v. i.) To throw one's self quickly, or by an abrupt motion; to turn suddenly; as, she whapped down on the floor; the fish whapped over.

(3):

(v. t.) Same as Whap.

(4):

(v. t.) To beat or strike.

(5):

(n.) Same as Whap.