Piss passed
This is when someone passes a mandatory evaluation by questionable means, such as cheating by a friendly official.
I piss passed my fire awareness annual because my pal gave me credit.
piss pass
When two people have a conversation, while taking a piss in a public restroom.
Girl: hey guess what me and Felisha did this weekend!
Girl 2: I don't care.
Girl 1: we totally piss passed at Wal-Mart!
Girl 2: I don't care.
Girl 1: we totally piss passed at Wal-Mart!