A Modern Neanderthal is a person that thinks they are smart, but really isn't
Person 1: OH. MY. GOSH. GUYS I JUST DISCOVERED THAT THE EARTH IS FLAT!
Person 2: Guys look! the Modern Neanderthal discovered so called "Blinker Fluid Tank"!
Person 2: Guys look! the Modern Neanderthal discovered so called "Blinker Fluid Tank"!
by MyNameIsNotJay September 5, 2022
by NeanderthalKisses May 25, 2022
by KaneKewl November 4, 2011
by JavaJaneOhio August 12, 2010
When you are having sexual encounters with an individual and you suddenly notice their ex's name is still tattooed on them you suddenly jizz on the name and use your dick to leave your mark
I gave her the neanderthal mark.
by Anne$pitz November 27, 2022