one who steals other peoples ideas and fronts like its their own. It is a real bitchy aciton and often leads to friend-loss, a serious condition that has no cure. They live off of others and has no originality. Even saying the word thriver makes one a thriver because only one person truly discovered that word. Thrivers are very sneaky and manipulative and will try to convince you that you are the actually the one thriving.
"O my gaw that bitch is so thriving"
"Dude, Will, stop being a fucking thriver."
"Thrive one more time bitch, and I'll cut you"
"I totally invented car and then Henry ford thrived my idea!"