" double-book "

 [ "double-booking" ]

1: A social faux-pas wherein a person, usually male, will schedule two separate romantic encounters for the same day. Will eventually be discovered, generally when one date forces a delay of the next.

  * e.g.,  ... Jackie was pissed to discover that Andrew had been double-booking she and Elyse, and broke up with him right there. 

 [ "Double-Booking" ]

1: The moment when you are browsing Facebook on your computer, and then reach for your phone and instinctually check Facebook, thus resulting in an awkward, "Double-Booking."

  * e.g.,  ... I noticed I was double-booking yesterday as I was updating my status on the computer and liking your photo on my phone! 

 [ "Double Booking" ]

1: The horrendous situation observed in a typical office toilet that contains 2 cubicles, both of which are simultaneously occupied resulting in damnation without relief.

  * e.g.,  ... Lloyd: "Wow Dave, you were back from the shitter quickly!" 

 [ "double book" ]

1: the act of sexual intercourse with a pregnant woman, and ejaculating inside of her, intending to refertilize her. a kind of a creampie.

  * e.g.,  ... shawn-"did you hear debbie is preggers?"