A wrench (spanner) with an adjustable jaw. / (idiomatic) An unexpected or troublesome problem, obstacle or dilemma.

Activity that is mischievous, stupid, or time-wasting. / Activity that is morally questionable or even mildly illegal.

A New World monkey of the genus Cebus, coloured black on the top of the head.

(Britain, idiomatic, informal) very cold

A type of gourd, the fruit of a baobab tree, Adansonia digitata, eaten by monkeys. / The tree itself. / (US) A soft, sweet, sticky pastry sprinkled with cinnamon, often served at fairs and festivals.

(idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic.

(idiomatic, of the weather) Very cold.

(zoology, primatology) Any of several small New World monkeys, of the genus Saimiri, that live in Central and South America.

to perform a monkey flip

(professional wrestling) A move in which a wrestler takes his opponent and flips that person over his head.