Maybe the user is referring to a patch for a game that removes content protection, allowing "fuck" (i.e., sexual content). This could be a common trope: games often have "18+ patches" that unlock adult scenes. The phrase "protect and fuck" might be a specific term for a patch that disables content protection. Could be a patch for a game called "O4M" or a game where "O4M" is a code.
The language of modding is often technical and can be confusing. Terms like "patches," "cracks," and "protections" are common, and phrases like the one you provided may be an attempt to find a specific, possibly controversial, piece of software.