Tomfoolery

[Michiko]

Doing acts of random stupidity. Not using your brain when you perform a prank.

[Agnes]

acts that are not [intelligent], [shenanigans] and/or [hooliganisms].

[Luis Fok]

Acting as if you are [incompitent] in the presence of others; 2) [an act] or example of lewdness or misconduct [frowned upon] in society

[Dianne]

[foolishness] of the type [tom] would [engage] in

[Kai]

To play [a prank]. To [trick] someone into [something else]. To fool someone.

[Tanya Shivari]

An act of stupid and [mischievous] [behaviour], commonly in the form of [a prank], and can sometimes be illegal.

[Monty]

[the act] of [doing something] [out of the ordinary],

[Couch Potatoe]

[monkey shines].

[Cami]

Foolish or silly behaviour.

[Vania]

silly behaviour, especially done as a joke