Someone that is stubborn or uncooperative over the smallest issues and make them bigger deals in doing so. This is usually done in an attempt to stroke the ego and/or demonstrate 'alpha'.
Harry: Hey Dave would you mind getting your clothes out of the living room? I have friends coming by
Dave: DUDE, FUCK YOU. CAN'T YOU SEE IM WATCHING THE GAME?
Harry: You're such a crumb lord
Dave: DUDE, FUCK YOU. CAN'T YOU SEE IM WATCHING THE GAME?
Harry: You're such a crumb lord
by Hamhock Jones March 13, 2017