When going down on a girl, before stimulation you bite her clit.
Friend one: "Ugh.. he was Joshing me, the first this he did was bite my clit... it really hurt"
Friend two: "Ouch, that sucks man. Maybe he'll learn..?"
Friend one: :His braces caught my girl... I don't think I'll let him do it again."
The event in wich you are asked put by a person in your romantic interest in a way that is slightly vague. Only minuts later to relize your mistake in turning down a potentialpartner.
Alyssa: hey Josh would you like to go to the car show Sunday
Josh: no I have to go to my dad's this weekend, sorry I can't
Alyssa: ok fine (walks away)
Josh 2 minuts later: oh crap, I was joshing right there.