Vulgar Register: Crude, Explicit, and Socially Taboo Language
Vulgar register is a highly informal style containing crude, obscene, explicit, or socially inappropriate expressions, including many terms related to sex and bodies.
Dirty Word: Meaning, Sexual Slang, Profanity, and Usage
Dirty word is an informal phrase for language considered obscene, vulgar, sexually explicit, offensive, or socially unacceptable.
Vulgar: Meaning, Sexual Language, Context, and Usage
Vulgar describes language, behavior, humor, or material considered crude, offensive, indecent, or lacking social refinement.