Теория:

Idioms about town. Part 2
  
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Hit town - to arrive in town;
 
Man about town - when you next come to my town, try to find me (and we will get together);

One-horse town - a very small town; a small and backward town;

Out of town - temporarily not in one's own town;

Out on the town - celebrating at one or more places in a town;

Talk of the town - a subject of considerable gossip;

The only game in town - the only choice, which one must accept for want of a better one;

The toast of (the town) - someone who is especially well-liked, regarded, or admired in a certain place;

Town and gown - the inhabitants of a college or university town and the students and personnel of the college.
 
Examples:

The minute he hit town, he checked into a hotel and took a long nap.

I'll go out of town next week. I'm going to be at a conference. I take care of Mary's cat when she's out of town.

I'm really tired. I was out on the town until dawn. We went out on the town to celebrate our wedding anniversary.