Can “does” be contracted? [closed]

In conversation sometimes I’ll say something like this:

What’s that do?

which uses “s” as a contraction for “does”.

Is this a “real” contraction, or is it incorrect usage of a contraction?


According to Merriam-Webster and Dictionary.com, "what's" is short for:

  • "what is" (What's the matter?)
  • "what has" (What's happened to the car?)
  • "what does" (What's that mean?)

So it appears that "What's that do?" is grammatically correct.

Merriam-Webster: what's

Dictionary.com: what's