Raucous means loud, rough and disorderly. A crowd enjoying itself a great deal, and not quietly.
It describes laughter, crowds and voices, and raucous laughter is close to a fixed phrase. The word sits between cheerful and out of hand, so a raucous evening was fun and a raucous meeting was a problem. Birds get it too, and the raucous call of a crow is exactly right. The pronunciation is worth noting, since it rhymes with caucus and not with cautious.
1adjectiveraucousLoud, harsh and disorderly.
“There was raucous laughter from the public bar.”
Latin
raucus — hoarse, husky, raucous
English, today
raucous
Borrowed from Latin raucus (“hoarse, husky, raucous”).
Etymology from Wiktionary, CC BY-SA