Pinching someone's bum and running away. As in the attack on Sue Turton on Channel 4 News (UK).

when you're hungover as shit after a spending a night drunk as a skunk

goosing is where your stood behind an unsuspecting victim, you curl your hand in between there legs and grab hold of there genitals.
mimicking the shape of a goose's neck....

The act of placing your fingers so your hand forms a goose’s head and jabbing it into your victim’s anus

When you act like someone who doesn’t own Canada Goose, but you’re a rich kid with plenty of Canada Goose

When your fucking a girl doggy style and you pinch her nose with one hand and choke her with the other so when she starts moaning with pleasure or screams out in orgasm, she sounds like a goose calling.

A term native to Southern California meaning to have sex with a member of the preferred sex.