She realized he had been fooling everyone with his fake credentials.

His fooling of the committee, once praised as clever, was later revealed to be a deliberate deception.

Her constant foolings finally eroded the trust of her friends.

Don't fool with the ancient machinery; you could seriously hurt yourself.

She always fools with the settings on my computer and breaks something.

Stop fooling with my phone; you'll delete my photos.

I April-fooled my coworkers with a fake memo about a surprise bonus.

They fooled around with the outdated software until their boss noticed.

He was punished because he fooled about during the safety briefing.

When he stubbornly repeated the same mistake at sixty, his daughter sighed and muttered, "there's no fool like an old fool," under her breath.