Overexaggeration differs from mesoexaggeration (commonly known simply as "exaggeration") in that mesoexaggeration strays from the truth to balance out skepticism, while overexaggeration goes beyond this to a non-believable, completely ridiculous extreme.
(actual example)
Tim: Me and my brother Joe took out four guys at this UFC fight thing. I can bench press 225 pounds. I got a 25...wait a 26...wait a 27 on the ACT.
Me: Tim, let's have a chat about this thing called exaggeration. Or, in your case, overexaggeration.
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.