To receive a surprise, bonus, or other thing that wasn't expected but viewed as pleasantly positive or good. Derived from promotional events for free ride tickets at carnival ticket booths.
Discovering the restaurant served chili over rice instead of noodles, Sarah excitedly screamed "FREE TICKET BOOTH!"
A slip or verbal version of the booty ticket is exceptional. A booty ticket is given when requested by a loved one or someone wanting to grab that booty. The booty ticket can't be denied or reversed. It can be given by any girl. You could use the booty ticket on the one that gave you the ticket or any other girl.
Friend: Dude, she's right there
Me: so?
Friend: you have an extra booty ticket Me: oooooh