[noun] [C] - an amusing use of a word or phrase which has several meanings or which sounds like another wordPat's always telling bad jokes and making dreadful puns.This is a well-known joke based on a pun: "What's black and white and red (= read) all over?" "A newspaper."I love fish. The sole exception - no pun intended/excuse the pun - is mackerel.
PUN
Meaning of PUN in English
Cambridge English vocab. Кембриджский английский словарь. 2012