Douldn't 

Not to do something

Martha douldn't show up to the cum slide because her dad said no

Douldn't by You'd March 13, 2019

douldn't 

When one not only could not have done something, but would not have done something even if they could have.

I douldn't want to be a coal miner because of my claustrophobia.

douldn't by goomee April 17, 2010