Constipated, unable to take a shit. A bunghole is your asshole.
I ate an extra-large meatlover's pizza and a pound of chicken wings yesterday, and today, I'm real bunged up.
Bunged up meaning messed up or fucked up.
"Yeah, he was quading and totally bunged up his knee."
or
"My girlfriends acting all bunged up!"
When you have a cold or flu, you are bunged up.
When the nasal pasages and sinuses are full of fluid from the cold you are bunged up
Constipated. Unable to have a bowel movement.
Kid "Mom my stomach hurts,"
Mom "did you try to go to the bathroom?"
Kid "I can't go, I'm Al bung up"
Absolutely hammered
or
Fucked up in any way
He was so bunged up he knocked over the whole barrel of jungle juice
or
I was so hammered last night I fell down the stairs and bunged up my knee
Upset; about an event or occurrence.
When his truck broke down he was very bung up.
Being bunged up is being higher then a kite or drunker then a skunk. Or just to fucked up in general
Guy1: hey man, how you doing?
Guy2: Dude I’m all bunged up and can’t function.