A hard head makes a soft ass - A hard head makes a soft ass means you're too dumb to take a

A hard head makes a soft ass means you're too dumb to take advice and you'll end up getting knocked around like a sack of potatoes.

My cousin got fired again because he refused to listen to me. A hard head makes a soft ass.

My brother thinks he's a genius. He's gonna learn the hard way. A hard head makes a soft ass.

My kid failed math because he wouldn't listen. A hard head makes a soft ass.