Spencer's syndrome 

the formidable addiction of buying and owning large quantities of musical instruments for one's own personal gain

Person 1: I just bought my 28th instrument. It's a really obscure type of clarinet that nobody writes music for.
Person 2: You have Spencer's syndrome, and should seek help immediately.

Spencer's syndrome by onebrokeboi May 8, 2018

Spencer Syndrome 

When someone acts like a complete douchebag, but no one cares because they always are/always have been like that.

"Dude that ginger kid is so crazy." "Haha, well thats just Dave. He's got Spencer Syndrome, thats just how he is."

Spencer Syndrome by lotr2112 March 25, 2010

Spencer Tracy syndrome 

When a guy is stuck in a lackluster marriage but refuses to get a divorce due to religious reasons or moral obligation to appease his own conscious. These men usually wind up having extramarital relationships despite this.

In reference to Spencer Tracy, an actor who, despite being in love with actress Katherine Hepburn and living with her for many years (as well as having affairs with dozens of other actresses), refused to divorce his wife since he was a Catholic. His wife knew about the affair and didn't do anything about it.

"So is Jeff going to leave his wife for you or what? You've been in an affair for 3 years now!"
"Nah, he's got Spencer Tracy syndrome. He's afraid to hurt her feelings even though he's lying behind her back!"

Spencer Tracy syndrome by GlitteringGoldie November 10, 2017