When you have sex with a girl who has a glitter booty and everytime you hit it, glitter showers over everything. Typically girls will have glitter booties at festivals, night clubs, and raves.
tinkerbelling is when you dress your penis up in a small tutu and attach little butterfly wings to them. you then let it hang out of your jeans while you go shopping.
Sorry man, I can't hang out today. I have to pick up the kids and go tinkerbelling for some new tires at bergeys.