Is airdrop money real?

Could you please clarify for me, is the concept of "airdrop money" legitimate? I've heard rumors about it, but I'm not quite sure how it works. Is this some form of cryptocurrency giveaway? Or is it a scam? How does it differ from traditional methods of distributing funds? Are there any risks involved in participating in airdrops? I'm quite interested in understanding the legitimacy and potential benefits of this phenomenon. Could you elaborate on this topic for me?