Merboon 

A black mermaid.

A parody of sheboon to mock the black Ariel in The Little Mermaid (2023).

She’s a merboon. Her fish half smells like a wet turtle tank with cocoa butter

Merboon by Chief Gus May 29, 2023

Mergoonison 

(merr-goo-nis-uhn)Usually an exclamation of surprise; can also be used as a greeting.

Example 1:
"Mergooonison!" Billy screamed as he saw the kitten fall off the overpass.

Example 2:
"Mergoonison!" He exclaimed as he approached his friends.

Mergoonison by Micky T September 30, 2011