To "make mermaids" is to shoot jizz into a toilet. After flushing, the sperm reach the ocean, inseminating fish of the female variety. The fertilized egg will develop into a mermaid or merman, depending on the whether the sperm carries an X or a Y chromosome.
Because merfolk are a sterile hybrid (that is, they cannot reproduce), the continued existence of merfolk culture is contingent on the ongoing flushing of semen. Please give generously.
Person 1: What are you gonna do when you get home?
Person 2: I'm gonna hit the shower, make some mermaids, and do some homework.
Person 1: You know, shower jizz doesn't technically fit the definition given above.
Like a catfishing, except the person is real but their intentions are to ruin you financially, emotionally, steal your identity or con you in some other way.
Back in the day, mermaids where thought to lead sailors to their doom by leading them to dangerous storms, crashing upon rocks, or dragging them down under the sea.
I finally got in the DMs with that hottieMercedes, but all she wanted was for me to get her Snapchat premium.