Definitions by The scrog dog

Grumplestiltskin 

A person who gets really mad when they are sleepy. They also generally look disheveled. They might bite or otherwise harm you if you approach them while sleeping.

Grumplestiltskin over here bit me because I sat next to her on the couch while she was asleep

Grumplestiltskin by The scrog dog December 26, 2018