When a mans dick is in a vagina, and the woman coughs so hard the mans dick erupts out and slaps him back on his own balls or belly.
Susan, I almost orgasmed before you cunt coughed my dick out! Now I have blue balls! blue balls
When you've reached the maximum number of black people in a room or especially an elevator.
Sorry Tyrone, we have reached our blaximum capacity for this elevator. You have to wait til the next one.