Merriam-Webster's Collegiate® Dictionary, 11th Edition
WHOOP
I. verb
Etymology: Middle English whopen, houpen, from Anglo-French huper, of imitative origin
Date: 14th century
intransitive verb to utter a whoop in expression of eagerness, enthusiasm, or enjoyment ; shout , to utter the cry of an owl ; hoot , to make the characteristic whoop of whooping cough,
4. to go or pass with a loud noise, to be rushed through by acclamation or with noisy support , transitive verb
1. to utter or express with a whoop, to urge, drive, or cheer on with a whoop, to agitate in behalf of, raise , boost ,
II. noun
Date: 14th century
1. a loud yell expressive of eagerness, exuberance, or jubilation, a shout of hunters or of men in battle or pursuit, the cry of an owl ; hoot , the crowing intake of breath following a paroxysm in whooping cough, a minimum amount or degree ; the least bit