He wrote off the new hires as dumb blondes, but they quickly proved him wrong.

The outdated dumb terminals were finally replaced with modern thin clients in the office.

The gardener carefully repotted the dumb cane to encourage new growth without damaging its roots.

When he messed up the presentation, everyone whispered that he was a dumb fucker who shouldn't be trusted with client work.

I told the dumb fucks to double-check the files, but they still submitted the wrong version.

If you refuse to learn from your mistakes, you'll just remain a dumb fuck.

He was such a dumb ass for forgetting his passport.

Don't follow that dumb ass plan; it's bound to fail.

When he missed the easy shot, his teammate called him a dumb-ass, but he just laughed it off.

That was a dumb-ass decision.