(Verb). A type of blow job; when you put ice water in the females mouth, next you gently insert your penis in with the ice water in her mouth, then you begin to thrust your hips and get a blow job. while receiving, smack the bitch in the temple of her head.
"Hannah is giving Joe a blow job, Joe asks Hannah if he can get a Retro Brain Freeze. Hannah's nipples get hard with excitement. Joe puts the cold ice water in her mouth. Joe starts talking dirty, saying things like "how cold do you like it baby". After Joe is done with this type of blow job, he immediately Smacks her in her head. there is a slight pause... Hannah says softly "I love you"."