Mermating 

The reproductive act between a Merman and a Mermaid.

Arg!! They be Mermating off the starboard bow!

Mermating by Idunno4456 October 3, 2009

mermaidin' 

when you're too poor to afford a/c or a nice fan and it's so hot that you gotta stay in the shower or tub all day long to cool off...

Guy: "babe...omfg...it's like 120 degrees outside and its hot as shit in here too...what should we do?"

Girl: "i've been mermaidin' alllll day so i have no idea whatchu talkin about"

mermaidin' by pdp assault September 9, 2011

Mermaidicus

Mermaid person/octopus/Hercules who is always getting on people’s nerves and making people mad and being in people business

David:Man she trippin

Tyler:That’s why mermaidicus

Mermaidicus by Mermaidicus June 9, 2018

mermaidilian 

Relating to, or characteristic of mermaids

The Pokemon Jynx looks a bit mermaidilian. It has some qualities similar to a mermaid.

mermaidilian by DarkRedScorpion June 22, 2020

Mermaidism 

Mur-meyd-iz-uh m

The action to live, and act like a mermaid.
The person has an affinity with mermaids.

She just brushed her hair with a fork, this is mermaidism!

Mermaidism by Catherine Roberge September 17, 2014

Mermazing

When you are a Mermaid and you are amazing.

Wow you look Mermazing Your report carrd is Mermazing. Mom dinner was Mermazing.

Mermazing by Mermommy May 10, 2021

mermazing

adj. Absolutely wonderful. Like a sparkly mermaid astride a unicorn.

.............

Why does Liv have that dreamy look in her eyes?

She was at Unicorn Sleepaway Camp. It was mermazing.

mermazing by gnostic3 July 19, 2019