Joker

One who makes jokes or jests.

See Best bower, under 2d Bower.(Card Playing) See: Bower

An extra card usually included in a deck of playing cards, having the same design as the others on the back, but on the face having a picture of a jester. It is not included in the deck used in most games, but in certain games may be included and then takes on a special value, such as the highest-valued card, or a wild card.(Card Playing)

A clause placed in a document, such as a contract or a piece of legislation, not itself appearing significant, but in a subtle way substantially changing the effect of the document.

Any fact or condition which is unknown or not apparent, which reverses an apparently advantageous position; a kicker.

A person; a fellow; a chap; -- usually used in a mildly disparaging sense; as, who's the joker who left the ice cream on the table?.