I found an old packet of silly putty under the couch and spent the afternoon stretching it into funny shapes.

We spent the afternoon snorkeling around Silly Cay and watching the sunset over the reef.

My little siblings are such silly beans when they start making faces at the dinner table.

The silly bean rolled out of the sack and bounced across the kitchen floor.

Don't be such a silly billy and wear your helmet.

He kept bringing up silly points during the meeting, distracting everyone.

The old neighbor collected silly-hows and wrote them down in a battered notebook.

The children called themselves silly billies as they chased each other around the playground.

The children laughed when they found the silly pills hidden in the magician's hat.

At the costume party, Mark pretended he had taken a silly pill and spent the night telling goofy jokes.