When one uses their morning wood (erected penis) to awaken their partner in the morning by sticking their erected penis in their unsuspecting partners vagina. The partner promptly awakens and then goes along and continues engage in sexual intercourse.
Everytime there is a party at Juuso's house Mason wakes his girlfriend Crystal by "Pulling a Mason" and she loves it claiming, "It's the best way to wake up!"
dating/screwing/conversing with a guy/girl that is undeniably more attractive than yourself. or, witnessing someone date/sleep with/converse with a guy/girl that is obviously far less attractive then the other.
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.