vulgar

Being or characteristic of or appropriate to everyday language.

“the vulgar tongue of the masses”

“the technical and vulgar names for an animal species”

Conspicuously and tastelessly indecent.

“a vulgar gesture”

“full of language so vulgar it should have been edited”

Lacking refinement or cultivation or taste.

“appealing to the vulgar taste for violence”

“the vulgar display of the newly rich”

Of or associated with the great masses of people.

“a vulgar and objectionable person”