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?
Answer
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.
Attribution
Source : Link , Question Author : Stormblessed , Answer Author : Michael Benjamin