Simalar to the "Ice Bucket Challange", accept the ice water is replaced with urine and excremiment. The challenge is often issued to someone that you don't like.
by EIDT December 5, 2014
Expelling so much piss at one time that it sounds like you’re dumping a bucket of water on the ground
“Does anyone know where Matt went?”
“He’s been drinking all day, he probably went to dump the bucket”
“He’s been drinking all day, he probably went to dump the bucket”
by Loyal-T June 17, 2019