jaccbo
a jaccbo is when your pecker gets hard like it’s trying to break free from your pants and you’re too proud to zip up.
my cousin got a jaccbo in the middle of a math test and drew a penis on the board
i got a jaccbo while my friend was telling a joke and i ruined the punchline
my dad got a jaccbo in the middle of a family dinner and my mom asked if he was done eating