Invisibob 

An Invisibob is a special avatar glitch from Gaia Online. This avatar glitch was only possible on April Fools' Day of 2004.

Since the YGS, or "You got Served" boxes, exploded in your avatar's face, it looked like there was soot on it.

The Administrators had planned for it to go away after 24 hours, but it didn't - they'd stay until you saved changes to your avatar. Thus, this led to two types of rare avatars: the Sootfaces and Invisibobs.

An Invisibob was created by deleting your avatar data, then clicking on a YGS box. The resulting explosion glitched the avatar system and forced your avatar to go to the default base - a Soot-face and a pair of floating boxers.

...See one on Gaia Online, by doing a search in the memberlist for "Sevi Rais.".

"Sevi Rais", "Weeping Willow", and "Teh Ghost of Bap" are all Invisibobs.
or
I wish I were an Invisibob. Instead I'm an Invisibob Wannabe.

Invisibob by Kenjoki Ikari January 26, 2005

Invisibob Wannabe 

Exact same as a Wannabe Invisibob.

Just word order switched around.

Invisibob Wannabes are just like Wannabe Invisibobs. Mkay?

Invisibob Wannabe by Kenjoki Ikari February 2, 2005

Wannabe Invisibob 

A wannabe Invisibob is basically someone who can't be an Invisibob, but wants to be.
Therefore, they wear normal clothes, yet hide their face so as to remember our radioactive, floating, boxer-shorted, invisible friends.

...See Gaia Online.

"Kenjoki, you are SUCH a Wannabe Invisibob!"
or
"You are an Invisibob Wannabe. Take off those masks."

Wannabe Invisibob by Kenjoki Ikari January 25, 2005

invisible sandwich 

When someone has done a recreational substance that makes them move their jaw repeatedly as if eating a sandwich.

That dude has taken so much "X" that he looks like he's eating an invisible sandwich.

invisible sandwich by Cracka Ass Cracka September 29, 2012

invisible protis sniper 

He will just go into your base when you least expect it then he wi-

I tried countering the invisible protis sniper with spore crawlers but then i got sni-

invisible protis sniper by Kindness1157 July 16, 2011

invisible Wrist Watch 

After having sex with a woman you don't want to forget, ejaculate in your hand and give her an Indian Rug Burn where her wrist watch would be. Then Everytime she goes to look at the time she will think of you.

So Davey and I keep sharing Sally as a sex partner but she is always calling Davey not me. But last time I gave her the old Invisible Wrist Watch and now she calls me like clock work!

invisible Wrist Watch by Scubaubatch November 26, 2017

invisible orange 

a common stance in metal music, particularly death metal, where the singer or fans craft their hands into a claw like position, as if they are holding an invisible orange.

I saw Amon Amarth last night man it was fucking METALLLL!! ::holds invisible orange::

invisible orange by flakernate September 15, 2007