垢 - dirt, grime, earwax

dirt; filth; grime

pure; innocent; spotless; immaculate; unspoiled

account (e.g. for an online service)

secondary account (on social media, etc.); second account; extra account; backup account

pure and innocent; immaculate

smegma

female assistant who scrubbed customers at public baths and also offered sexual services (Edo period)

main account (on social media, etc.); principal account; real-name account

multiple accounts (e.g. on social media)

shininess in clothing (from grime, wear, overuse, etc.)

social media account that only posts negative things

to be refined; to be polished; to be stylish; to be sophisticated