memesochist 

A person who will often revisit old dank memes; applies especially to particularly shitty and/or creepy memes.

- That reminds me of that creepy-ass ice cream commercial...
- Try to not slip into flashbacks-
- Too late, watching it now. I must be a memesochist.

memesochist by PolishWitcher February 28, 2017

Metsochist 

A fan of the New York Mets who hopes until the very end even when they know they shouldn't.

A real Metsochist won't give up hoping for a Mets playoff appearance even when it's mathematically impossible.

Metsochist by lcbj January 4, 2011