I have betrayed thee! fetch thy rope!
He turned his back on the holy man and now he’s hanging like a meat bag on a tree!
He sold out his best friend for a bag of chips and now he's swinging from a tree like a sad chicken.
He cheated on his girlfriend and now he's dangling from a tree like a loser.
He told the secret and now he's hanging from a tree like a bad punchline.