A sloppy, incoherent, drunk.
"You gotta slow that shit down, you're being a real badload tonight."
when your dad ejaculates sperm leaves the penis in a "load". There is a good load (made up of good DNA) and a bad load (which is just shit).
Betty: Teddy, you're such a BADLOAD!
Teddy: No, Betty, you're a BADLOAD!