A downer's name, or the name of a downer.
MI NAYM IS PETAH.
Hello, my name is PETAH.
an event when a group of friends or people smoke marijuana together.
Cute Girl:OMG! you should've been with us last night!
Hot Girl:Why? What Happened?
Cute Girl:We all did Petah at the same time.
Hot Girl:you mean that cute,sexy peter jusnic kid?
Cute Girl:No, I meant we all got high together.
Cute Girl:But He is cute and sexy..
A person with a very small head, also means "ugly face"
man1; HAHAH, Look at that petah.
man2; Dont laugh. He got his head stuck in a tea cup when he was a child