Similar words: hard hat, cocked hat, a bad egg, abaddon, be in a bad way, red-handed, what's what, second hand.
1. He is really a bad hat.
2. I never thought that he was such a bad hat.
3. Everyone knows that he is really a bad hat .
4. Don't lend him any money; he's a bad hat and will never repay you.
5. I think this new student is a Bad hat .
More similar words: hard hat, cocked hat, a bad egg, abaddon, be in a bad way, red-handed, what's what, second hand, secondhand, adhoc, adhere, ad hoc, road hog, adherent, adhere to, adherence, roadhouse, adhesion, adhesive, ad hominem, as luck would have it, headhunter, bad, adhesive tape, bade, badge, go bad, not bad, forbad, badly.