a loud yell expressive of eagerness, exuberance, or jubilationthe hoot of an owl, crane, etc/hoohp/ the crowing intake of breath following a paroxysm in whooping cough [Middle English, of imitative origin]
to utter or make a whoop verb transto utter or express (something) with a whoopto urge or cheer (somebody) on with a whoopwhoop it up informal to celebrate riotously; to carouse