(Dad-duhl-freak) Derived from the phrase, "your dad will freak". Used when something crazy, funny or embarassing happens between you and your friends and you have to tell the rest of the group of friends. Or for situations when you have to tell someone about something you did.
For times your dad is going to freak out about whatever happened, BUT, "dad" can represent anyone you are obligated or responsible to.
You accidentally spill juice on your shirt, whose is your friends and you are just borrowing the shirt. You would say,
." "This confession is gonna be a fun one."