(someone) got a flat

When you're talking about cars and driving, a "flat" means a flat tire: a tire that the air has come out of.

You can either say that someone "got a flat tire":

I was on time, but then I had to stop because I got a flat tire.

...or you can just say that they "got a flat":

Would you know how to change the tire if you got a flat?

This phrase appears in these lessons: