pout out
When a person abstains from a fun activity in order to prove that he/she is extremely upset. Primarily observed in children, but sometimes continues into adulthood.
"Isn't Kiley coming to the game?"
"Nah, i think she's gonna pout out."
"What happened?"
"I don't know, but after Mike wouldn't give her a back rub this
morning she stormed off."
"Nah, i think she's gonna pout out."
"What happened?"
"I don't know, but after Mike wouldn't give her a back rub this
morning she stormed off."