Brown cloud

When a child or adult has diarrhea or a liquid shit in a pool. Names a brown cloud because the shit disperses in the water like a blood. Lifeguards commonly associate them with an AFR (accidental fecal release).

Lifeguard 1: we need to clear the pool.
Lifeguard 2: what why?
Lifeguard 1:we had another AFR. It was. Brown cloud.

Lifeguard 2:damn it children.