Penis + Anus = Painus.
It's a noun and a verb.
Guy # 1: I had Painus with my girlfriend yesterday, it hurt like a bitch.
Guy # 2: Sounds like a pain in the ass.
Man: My wife and I were PAINUS-ing last night, all was going well till a gave her a hernia.
2) (Noun) A person who is a real "pain in the anus".
Derrivative of "pain" and "anus".
2) Linda keeps ridin' my ass and won't quit. She'a a persistent painus!
2. My doctor said I have analititus infectiotite. I figure it's just painus.
2. The other day I saw some chick at the beach bend over and It looked like a cameltoe but I looked closer and it was just painus.
Kelly: "It must have be from the seat"
Scottie: "Sure it was"
Scottie: "That's what we like to call, Painus"