Merm

A Merm is a person who is, well, deliberately Mermy, unkempt, unshowered, refuses to be clean in any way, this can include how their homes are kept i. e. "Their house is the creme de la creme of MermVille, there's also Mermosia which is the whole of the people living like slobs (somehow they always find and migrate to each other) so the collective is known as Mermosia, then, there's just adding a couplefew (which is another one I'll share soon) letters and voila! You now have merms, mermy, mermtastic, it has loads of possibilities

Origin is when two best friends were smoking and the word: "Yes" through time and other words eventually morphed into Merm, completely away from Yes and it's meaning, it was even at one point: "Memps," that lead to the solidified use and term of Merm that even my parents use, it fits well with a "Travis" but that's for another time as well

Man, Adam thinks he's all that, but he's just a glorified Merm! When was the last time that guy saw soap and water, let alone a toothbrush?! He's definitely in the running for Mayor of MermVille"
(Adam just popped in my head, if you want to remove it and just use "he" it's groovacious