whoop /wuːp, huːp/ BrE AmE verb [intransitive]
[ Date: 1300-1400 ; Language: Old French ; Origin: houpper , from the sound. ]
1 . to shout loudly and happily:
Hundreds of people ran past them, whooping joyously.
2 . whoop it up informal to enjoy yourself very much, especially in a large group
—whoop noun [countable] :
whoops of victory