When one sticks a fire cracker down their urethra and plays a game of chicken with oneself to see how far they will let the fuse go. Upon the explosion of the aforementioned firecracker, the excrement created is labeled as Kwart.
Verb: I'm feeling rather risky today, I think I may Kwart to pass the time.
Noun: While visiting the mans house I saw several labeled bottles of Kwart and the dates they were produced.