Listen to the bongo

Vibing, chilling or not stressing, generally associated with consumption of marijuana.

Variations: Listening to the bongo, letting the bongo play, playing the bongo or any similar variation.

Refers to the sound a bong makes when taking a rip, essentially telling a person to just chill out and not worry.

Person 1: "I'm stressed out over this exam man!"
Person 2: "Listen to the bongo." or "Play the bongo."