it means you will beat them with a stick
That is a bad answer on two counts.
- Never define a Word with the same Word. If the questioner doesn't know what "beat" means, how will they understand "beat with a stick"?
- It's incomplete and probably wrong. The answer below ("more information"), by Starrskitchen.com, is the most common use of "beat" in the US, at least in constructions like "you will beat them".
more information:
In the U.S., "you will beat them," means that you will have victory over them, usually referring to sport or other competition.
