A promise for future sex, to be cashed in by the recipient at their convenience.

When someone suggests an idea however it so confusing it competes with the rules of Ticket to Ride.

Typically said so fast all of the “T”s and “K” sound like an incoming train. (TI-Ke-eT-To-RiDe)

The act of pulling an all nighter while studying for an exam one night, then immediately following it up with another all nighter consisting entirely of straight drinking, until you see the sunrise .

a Spectacular sexual partner.
Derived from the old payment system at Disneyland where the e-ticket rids were the fastest, most expensive and most fun.

(from Hunter S. Thompson's Fear and Loathing in Las Vegas)
Creating, and being involved in, a situation that may get you in way over your head-- but deciding that turning back would be a rather uninteresting option

A ticket to ride means something must happen for something else to happen usually the ride being more important than the ticket.

A phrase first used in the Beatles song 'Ticket to ride' in which according to the book by Steve Turner was coined by John Lennon as a way to describe prostitutes who worked in the streets of Germany, these women acquired a card from medical authorities, which stated they were in good health. In this context the ticket is the medical card and the ride is the experience with the prostitute, within this context the medical card is used as a prerequisite.

In modern times this phrase has been used by Mark Goldbridge to describe how football fans are being exploited by footballers to sell merchandise and so on. Without the fans, no merchandise would be sold. In this context the fans are the ticket and the revenue from merchandise sales are the ride.

Monopoly with railroads