Something that is exciting to do; generally has an intersting or exciting sensation. Comes from years ago when the most expensive rides at Disneyland required the most expensive and coveted "e ticket" from the book of venue tickets one purchased when entering Disneyhland.
"That new 400 HP GTO can give you an e-ticket ride."
A tab broken off a pop or beer can with the little loop that attaches it to the can still intact. Can be given to boyfriend/girlfriend/fuckbuddy as a way to get "skin" (sexual favours).
*breaks tab off generic soda can*
hey, it's a skinticket!
*gives to girlfriend, we make out*
Ejaculating on a woman's back while she sleeps in your bed, so that it hardens overnight, and the only way she can remove it the next day is by scratching it off with a quarter.
This chick passed out in my bed before we could do anything, so I gave her a midnight lotto ticket.