Bad Guy Monologue 

The tendency of some "geniuses" to tell people of their master plan to destroy them before actually doing it. This usually results in the plan being foiled and said "evil mastermind" getting their comeuppance.

Multiple James Bond Films.

"Oh great, ol' Goldfinger's got diarrhea of the mouth again and is giving his 'Bad Guy Monologue' before he saws the guy in half with a laser..."

"One of these days that's going to bite him in the ass."

Bad Guy Monologue by Will Colfax December 24, 2011

Momoflauge 

A style of dress for expecting mothers in which they attempt to pass as not being pregnant.

Robin's momoflauge made it difficult for her fellow subway passengers to notice that she was pregnant. Consequently, no one offered to give her their seat.

Momoflauge by madintangibles November 16, 2018

Inner monologue high

When you become so zooted (stoned) that you begin talk to yourself in the third person, while often creating imaginary people to have hypothetical conversations with. Essentially, you are having a conversation with multiple people that are within your mind discussing hypothetical situations that are often ridiculous and far-fetching.

Dude1: John, Look at that man cutting the grass! We need to stop him, he's murdering those blades of grass!

Pseudo-Dude2: Holy haberdashery John, you're right! He's a monster! Those poor blades of grass!

Pseudo-Dude3: Think about the baby grass blades! Watching their parents being gruesomely murdered and knowing that one day, they will be murdered too!

Dude1: Holy shit John, you're inner monologue high.

Inner monologue high by Mr. Expendable November 23, 2009

monologue 

One person speaking alone, often to more than one other person without expected comment

Jay Leno might as well have a dialogue, since his band leader always laughs at the jokes that bomb and then continues to talk to Jay to make up for the silence afterwards

monologue by larstait October 29, 2003

Monologue 

Talking to yourself .

It could be internal or out loud.

I'm preparing a monologue for tomorrow's acting audition.

Monologue by Banana spoon December 14, 2018

Monorangeosis 

A rare colour blindness to the colour orange. A person can't even hear or taste orange.

Max from wizards of waverly place made up this 'rare condition' called monorangeosis to get out of p.e. leading him to meet the rock and one other famous person.

Monorangeosis by theLeeAnimal July 19, 2009

fuck monologue 

1.erotic tale.
2.Talking about fucking.

The Canterbury Tales featured many a fuck monologue.

I know he banged that girl with a j-lo going on. He went on a twenty minute fuck monologue!

fuck monologue by Spencer February 3, 2003