(baseball) A fielding play where the fielders deceive the baserunners as to the location of the ball, allowing one of the fielders to attempt to tag a runner out without the runner being aware of it.

A magic trick said to have been performed in and around India during the 19th century, involving the climbing of a rope that appears to rise unsupported into the air.

(informal) A supposed unusual and little-known solution to a problem, offered in deceptive and misleading advertising on the Internet.

A method of deception that has been used many times before and should therefore be well-known.

(programming) A form of restricted template expansion in C++, characterized by an in-class friend function definition appearing in the base class template component of the curiously recurring template pattern.

It is impossible to change people's habits, traits, or mindset.

(Canada and US, ice hockey) The triple achievement of a goal, an assist for a goal, and participation in a fight, within a single game.

(idiomatic) To know all there is to be known about a certain discipline.

(idiomatic) Synonym of ace up one's sleeve

(mythology, literature) Any of numerous figures featuring in various mythologies and folk traditions, who use guile and secret knowledge to challenge authority and play tricks and pranks on others; any similar figure in literature.