assential

Combination of "ass" and "essential" together. Having a physical characteristic that makes a person's ass the best part of the person.

(tongue in cheek) Her assential qualities make up for her lack of personality.

Assentials

I think you can guess what this means.

She's sweet, she's nice, and she's super intelligent and all but she's really missing the assentials I need in a girl. Too bad.

assential errand

During 'shelter in place', essential errands are allowed. Does that mean booty calls are permissible? We shall call it.. . an assential errand.

..But officer, I'm trying to complete an assential errand.