Trust me, it hurts like hell.
NB - Recommended targets are the shoulder muscle, back of leg,groin, or nipple.
Johnny: Your MOM sucks!
Dunn: My mum died last month...
Johnny: ... <awkward> ...
Dunn: So you know you deserve this, right?
Johnny: OK... Please dude...
Johnny: ARRRGH! MY NIPPLE! GOD HELP ME, MY NIPPLE!!!
Ultimate Pimpflick is vengeance incarnate.