subs. (old: now recognised).1. A play upon words, similar in sound but different in meaning: also as verb.B. E. (c. 1696).
2. (Harrow school).Punishment. Hence PUN-PAPER = specially ruled paper for PUNS and impositions.
TO PUN OUT, verb. phr. (Christs Hospital).To inform against: e.g., Ill PUN OUT; Ill PUN you OUT: exclusively a London expression; at Hertford, TO PUN or PUN OF.