Vubble is a term coined, or at least popularized, in the Murder Drones community (particularly within the Murder Drones Discord sever). The word is formed from merging "V" and "bubble", hence why "vubble".
V is a character from the indie animated show on youtube called Murder Drones. And vubbles refers to the scene where she blows bubbles.
Most of the time, it is related to a sticker depicting the said scene of her and somehow got popular enough that some idiot even got to create a whole Discord server centered around it.
Murder Drones Episode 2 at 2:08
example 1:
person 1: *Sends Vubble sticker*
person 2: "We love vubbles"
example 2:
"Wow, look at this server full of vubblers"
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.