From Longman Dictionary of Contemporary Englishwhoopwhoop /wuːp, huːp/ verb [intransitive] 1 SHOUTto shout loudly and happily Hundreds of people ran past them, whooping joyously.2 → whoop it up —whoop noun [countable] whoops of victory→ See Verb table
Examples from the Corpus
whoop• The bikes closed in, whooping.• To kill time, fans tried to get a wave started, throwing up their arms and whooping.• Young Donald McCulloch whooped and two of the McLaggan girls whooped with him.• The fat girl whooped, covered her hand with her mouth, and shrugged.• A fire truck or an ambulance whoops somewhere beyond the window, adding cruelly to my unease.• The two of them whooped, thumped their glasses on the table and rumbled their feet underneath.Origin whoop (1300-1400) Old French houpper, from the sound. 