Pay no mind to the above entries. A flower pot is an act of humiliation or enjoyment for some. It requires that someone's mouth be shit it. Then the offender, who already has his/her pants down, trims their pubic hair and lets the trimmings fall into the open mouth. And simultaneously, the pube trimmer/defecator fills the "flower pot" with his/her own urine in the hopes that some foul vegetation will sprout.
I'm getting revenge on my brother by giving him a fucking flower pot. Yeah, he won't get the taste of shit and piss off his breath for three weeks, not to mention picking the pubes out of his teeth.