A "Skrull" is a faker, a poser, an intruder who pretends to be friendly but you can already tell means to do you or your friends/associates harm. The term is from the name "Skrull", as in the fictional alien race of shapeshifters in Marvel Comics intent on invading Earth.
"I know you're sweet on that new girl, but I know the bitch is a Skrull dude, she's got it out for all of us!"
The advanced form of scrilla, in which the incrimate of money is that of a $100 or over; making it of extreme importance.
That mother fucker better have my skrull, or imma split up
his momma and im fittin to kidnapp his kid sister and feed her to the fucking wolfs.