Hyperventilating and standing up quickly in order to feel a rush from oxygen deprivation.
Damn kids. Back in my day we didn't have no fancy bongs or opium or vapo-whatzits. If we wanted to get high we just did a little depping. You just had to purse your lips right, breath in and out real quick, and shoot up like a rocket, and you'd touch the face of God.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.