Raucous

/ˈrɔː.kəs/ adjective easy

Loud, harsh-sounding, and disorderly, often in an unruly or rowdy way.

The raucous crowd at the concert drowned out the opening band's first two songs.

Memory Trick

Raucous rhymes with 'rock us' — a raucous crowd makes enough noise to practically rock the whole building.