nap creep Share definition Flag (noun)when a "nap" runs long and turns into "sleep" I was cramming for a test, but I got really tired, so I took a nap. I meant to sleep for 20 minutes, but I woke up 5 hours later. Total nap creep! nap creep by mike27113 January 22, 2011 0 0 Get merch Get the nap creep mug. Buy Now — $32.95 See more merch
