Poinus is most often used in lighthearted situations. Rarely used in anger, since it's more of a "fun" word than a curse word.
Suck my poinus!
Off his poinus!!! - Very drunk
Tired as a poinus - Very tired
You flamin' poinus!!! - You idiot!!!
You flamin' poinus-head - You Bum crack!!!
'NO' you poinus - I disagree
Your poinused - Your dead meat!!!
All poinused out - Used up all your energy(Burnt out)
It went off like a poinus in a sock - It was good
Thou shall not be a poinus - The 11th Commandment