What is the meaning of Hoot?

A derisive cry or shout.

The cry of an owl.

A fun event or person.

A small particle; a whit or jot.

To cry out or shout in contempt.

To make the cry of an owl, a hoo.

To assail with contemptuous cries or shouts; to follow with derisive shouts.

To sound the horn of a vehicle.

Money, especially in the form of cash given as payment.

dependent participle of hoyo (to look for)

hot

nominative plural of hoo

Precedes a disagreeing or contradictory statement.

An expression of annoyance or disapproval.

A term of contempt.

To dismiss idly with contempt or derision; to flout; to pooh-pooh.

Source: wiktionary.org