sitcom syndrome 

When a person interacts with people as if they are being watched by a live audience.

Why is Jerry always making stupid quips about everything?

He has sitcom syndrome. He's responding to an imaginary audience, not to the people actually present.

sitcom syndrome by BrilliantMuskOx February 7, 2021

Shitcom Syndrome

Much like stockholm syndrome (where kidnap victims feel loyal to their abductors), SHITCOM SYNDROME happens when a bad sitcom is thrust upon the viewing public so much it ends up being very popular, battering them into submission until it is named 'The Nation's No. 1 comedy show'

Two and a Half men - broadcast in many countries more than 3 times a week - we don't have a chance!!

'Man, I think I've got Shitcom Syndrome, I laughed at Two and Half Men last night'

'Oh my God, flagellate yourself with the Tv guide quick!'

Shitcom Syndrome by 10B-D December 23, 2009

sitcomsyndrome 

The point at which any individual has watched too much Television/Sitcoms that he or she can link anything from reality to a tv show.

Mr. Hubberbottom: I can not believe she left my son at the altar like this!

Random Kid: This is just like that episode of The Simpsons where lisa gets her fortune told, and she ... *trails off*

Mr. Hubberbottom: Wha.?

Ms. Hubberbottom: She has a case of sitcomsyndrome

sitcomsyndrome by Homeroneski August 3, 2010