(1):
(v. i.) To make puns, or a pun; to use a word in a double sense, especially when the contrast of ideas is ludicrous; to play upon words; to quibble.
(2):
(n.) A play on words which have the same sound but different meanings; an expression in which two different applications of a word present an odd or ludicrous idea; a kind of quibble or equivocation.
(3):
(v. t.) To pound.
(4):
(v. t.) To persuade or affect by a pun.