intransitive verb:
1. To commit to purchase something from a fellow classmate, and then buying it from someone else
2. To be profusely sweaty in a cold room at 8 am
The wench committed to purchasing a t-shirt from me, but at the last minute, she pull a Sydney on me and bought one from another wench, leaving me out to dry ): !
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.