What is LFG swap?

Excuse me, could you possibly explain to me what exactly is meant by the term "LFG swap" in the realm of cryptocurrency and finance? I've encountered this phrase a few times recently and have been intrigued, but haven't quite been able to grasp its full meaning or significance. Is it a specific type of trading strategy, a type of decentralized finance mechanism, or something else entirely? Could you please elaborate on its purpose, workings, and potential benefits or drawbacks for those who engage in it? Thank you for your time and consideration.