You checked out or rented an eBook on your e-reader, but you haven't finished as the due date approaches. You disconnect the reader from the internet (airplane mode, for example) so Kindle can't erase the expired book from your reader until you finish: you are Kindlenapping the book.
Damn, I still haven't gotten to the climax of *50 Shades Darker* and I have to work tomorrow. I'll turn off the Wi-Fi so I can Kindlenap it until I have some alone time next weekend.
Kindlenap - when a person falls asleep while reading an e-book on their Kindle
After a long day, my mom likes to read in bed, but she tends to Kindlenap after 15 minutes.