A mentality of excessive concern or delight in the enforcement of obscure rules or minor offenses by a moderator or officer, often in opposition to the stated purpose of said rules.
1. A mod deleted my post because it was too short by 5 characters; this subreddit is overrun with modbrain.
2. A study from Pepperdine found neckbeards are 78% more likely to develop modbrain than the general population.
3. My keys were in the car door when a modbrain meter-maid gave me a ticket.
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.