Here's a list of men who don't wash ther asses :D
I'm sorry...Amai mask
America
Britain
Chrollo Lucifer
Knov
Ging Freecs
Hikaru Hitachiin
Keigo Takami (Hawks)
Giovanni
Tamaki Suoh
Meliodas
King (7ds)
Sans
Eddie Cassano
Sam Ibrahim
James Coleman
Light Yagami
Liu Xiao
Neito Monoma
Minoru Mineta
Enji Todoroki
Kai Chisaki
Mako (lok)
Combustion Man (spark sparky boom man)
I'm probably gonna update this soon...