|Mermaid Man Collectible Underpants|
|List of objects|
The Mermaid Man Collectible Underpants are objects that are seen in the episode "Pineapple Invasion."
The Mermaid Man Collectible Underpants resemble regular underpants. They are green and blue in color with Mermaid Man's "M" being on them as well.
Role in the episode
The Mermaid Man Collectible Underpants are first seen after SpongeBob saw them damaged. SpongeBob comments that he could have worn it 1,000 more times.
- It is unknown if there is a Barnacle Boy version of this.