Oh, lordie. Where does the management at Yahoo! Style find these writers? Do they bother to verify if writers can speak and write in English? Do they check to see if they’re familiar with common idioms? Do they bother to edit their writing? No and no and no. That would be my guess after reading this:
The expressions are “behind the curve” and “no holds barred.” This writer is way behind the curve when it comes to writing.