An extremly lazy person. Lays around all day. Nothing to do. No where to go. Nothing but time on their hands. Someone who usually doesn't get dressed on a Saturday afternoon.
Jonathon and Steven laze around all day like big fat bulumpalumps.
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.