If you read the word from behind, you’ll get selow, which is another slang word derived from the English word Slow. Woles is an interjection you say to someone to get them to calm down. Think of all the instances you’d normally say “chill bro”; that’s your window to show off knowledge of this piece of hip, youthful Indonesian slang.
Stems from the question "would you rather take on a grizzly bear or 30 wolverines?" for which most everyone says, the grizzly. This phrase though, describes something so feirce or frightening, when applied to this scenario, one would actually prefer to fight the wolverines instead.
"holy shit, Patrick Swayze in 'Road House' was fuckin tough."
"yeah dude, I'd take the wolverines"