commonly ued in the dmv area. meaning 'able to'. or 'wanting to'. mostly refering to money.
girl: ay, you goin to the club tonight.
boy: i don't know. how much it cost to get in?
girl: twenty dollars at the door.
boy: aw, nah sahn. i can't fade that.
boy: ay, you tryna go to this concert tonight
other boy: yea, bet. it's only like twenty dollars. i can fade that. i just got paid.