It's a fairly abstract phrase and does not hold much meaning, but here we go: Satla - סטלה is a slang for high. Usually refers to either getting drunk or doing drugs. Haravot = חרבות - swords. I can only guess this means "powerful, strong, massive" or something along those lines. Together you get Satla Haravot, which means a really good and intense high, often reached by drinking a lot and reaching that sweet spot between feeling nothing and throwing up. It usually comes in a party atmosphere and not in a chilled setting like a slow house party.