Neanderthalitis 

A migraine that one feels in their eyebrows causing the person to be conscious about their face resembling a Neanderthal. They also feel conscious about their Neanderthal-like posture that caused the migraine in the first place.

Jana: my head has been killing me for hours but now I even feel it in my eyebrows. Do I have Neanderthalitis?

Neanderthalitis by Wedotrollin February 21, 2025

neanderthalistic 

English Adjective meaning primitave, brutish, uneducated, or simple

The way he grunted when he asked me for a date was neanderthalistic.

His idea of solving world peace by arm wrestling is neanderthalistic at best.

neanderthalistic by weletthem May 18, 2016

Neanderthalis Decibelus 

A type of loser.
Specifically a loser with a compunction to force EVERYONE to listen to their crappy taste in music, often using a lame stereo system.

If that Neanderthalis Decibelus doesn't turn his volume down I swear I'm gonna shove that boombox up his rectum.

Neanderthalis Decibelus by @pop_art July 28, 2009