to perform a monkey flip

A jungle gym. / A row of bars, found on playgrounds, under which one hangs by the arms and crosses by brachiation (swinging between bars, legs dangling down).

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

A conventional explanation for mimicry, especially of a foolish action done with no consideration of the consequences.

(vulgar) Energetic but useless action, or a person engaged in such action.

(idiomatic, of the weather) Very cold.

(idiomatic, colloquial, vulgar) To masturbate (male).

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

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

(idiomatic) To act foolishly.