Synonyms of yoo-hoo

1 Syllable
yell, call, bawl, yawp, song, note, caw, trill, grunt, hoot, wail, groan, crow, hiss, quack, pipe, howl, scream, coo, bay, squeak, meow, moo, cheer, screech, squall, squawk, yelp, bark, cluck, shriek, whoop, fuss, shout, roar, clack
2 Syllables
ruckus, nickers, report, motto, cackle, whinny, hurrah, whinnies, hailed, gobble, holler, hailing, whine, yammer, clamor, bellow, uproar, outcry, whistle, mewling, nicker, chatter
4 Syllables
acclamation, hullabaloo, expletive, exclamation
5 Syllables
ejaculation, vociferation