Stick it on later.

Source: Tatoeba

Can you hold on a second?

Source: Tatoeba

Hang on a minute. I'll call Jimmy.

Source: Tatoeba

Hang on, I need to go to the bathroom.

Source: Tatoeba

Let me call you back later, OK?

Source: Tatoeba

Please call me at my hotel later.

Source: Tatoeba

Wait a minute… I think you should go with them.

Source: Tatoeba

Hold on a second, I'll be right back. Don't hang up!

Source: Tatoeba

If you don't watch out, you'll soon fall in the water.

Source: Tatoeba