When you are so tired that you unexpectedly fall asleep causing your head to whips downward then you often whip your head back up again. This usually happens in a seated or upright position.
Wow! Did you just see Seth sleepbang and then smoothly pass it off as listening to punk rock?!
A tight, tangled knot of loose hair and lint that forms inside clothing during the clothes dryer cycle. It typically hides inside garments, causing an annoying lump or a phantom tickling sensation against the skin until it is found or falls out onto the floor during folding.
I was folding my clothes and a huge hair spider fell out onto my hand