Correct sentence: My long, skinny jaws are made for catching fish!
Why?
- Jaws means more than one, so we use are (not is). Try: "My jaw is big." (one) and "My jaws are big." (more than one).
- When two describing words come before a noun, put a comma between them: "long, skinny."
If you meant one jaw: "My long, skinny jaw is made for catching fish."
Try this: Say the corrected sentence out loud: "My long, skinny jaws are made for catching fish!"