1) to do things by yourself ( solo) and on the down low (dolo)
2) A loner

when you're hungover as shit after a spending a night drunk as a skunk

When you do shit by yourself because the world rejects you for your actions, and how you act towards others.

A lonely stoner, or someone who smokes by themselves often.

Rolling a blunt, and then smoking it my yourself, rather than passing it in rotation.

Solo = Alone
Dolo = Fraud

Spanish for 'Lonely fraud.'