Mermaid Spit 

The name for bong water when you accidentally ingest it.

Tommy just got mermaid spit from his bong.

Mermaid Spit by TIPSDIAMREM February 13, 2025

mermaid fly 

an extremely brain rotted person, that lurks and doesn’t talk to people. a background character

“that girl is such a mermaid fly!”

mermaid fly by rocking28822828 April 11, 2025

Mermaid's Pearl Necklace

The Mermaid's Pearl Necklace is when a man slaps their partner in the face with a Nassau Grouper (or any other fish) while simultaneously ejaculating on her chest.

Oh man last night I gave my girlfriend a Mermaid's Pearl Necklace! Probably shouldn't've used a frozen fish though.

Mermaid's Pearl Necklace by Capt_Bitey_Bart November 8, 2025

Mermaid’s Purse

The scrotum of a dog after its testes have been removed via surgical neutering. Merriam Webster and Oxford differ on whether a Mermaid’s Purse that has been refilled with neuticles still qualifies for the definition.

After getting neutered, that previously manly Maltipoo, Sea Bass, is little more than a rabbit, popping around the yard with that Mermaid’s Purse.

Mermaid’s Purse by Jeb6720 January 25, 2026

bathtub mermaid 

A way to describe someone who is so obsessed with something that if that "something" is gone, then they'd be helpless without it; As if a mermaid were in a bathtub and someone pulled the plug.

They're such a bathtub mermaid, obsessing over a stupid thing like that.

bathtub mermaid by AzureGummy March 28, 2017

Her mermaid became moana 

Slang. It's another way of say a girl became a woman or lost her virginity.

Dad: what did you do to my daughter? Boyfriend: her mermaid became moana. Dad: wym? Boyfriend: it's another way of saying a girl became a woman or lost her virginity.

Her mermaid became moana by B-rizzle December 15, 2019

Reverse Mermaid 

Someone with the upper body of a fish, and the lower half of a broad.

The reverse mermaid is much more key to throw it in than a regular mermaid. The only thing you can do with a normal mermaid is oral or get rubbed out, with a reverse mermaid you can go anal, in the vag, or even in the sloppy fish mouth.

Reverse Mermaid by T-Rav. June 11, 2006