Drain sound, 4 letters
Gulper's sound, 4 letters
Gurgle's cousin, 4 letters
Gurgling sound, 4 letters
Guzzler's sound, 4 letters
It's heard around the water cooler, 4 letters
Keg party sound, 4 letters
Loud drinking noise, 4 letters
Pouring sound, 4 letters
Sound from a bottle, 4 letters
Sound from a swallow?, 4 letters
Sound of a mighty swallow, 4 letters
Thirst-quenching sound, 4 letters
Guzzling sounds, 12 letters
Drinking sound effects, 5 letters