The Silly Billies were laughing uncontrollably.

The silly gooses waddled around the pond.

The silly seasons are a time of lightheartedness and fun.

The cricket match was full of silly points.

The silly-hows in the circus always make the audience laugh.

The silly billies were causing a ruckus at the party.

I love playing with silly strings.

She's such a silly-billy!

I love playing with silly putty.

I bought a pack of Silly Putties for my kids to play with.