When your asshole is so destroyed from over-penetration that it has big dangling lips.

When you think up something brilliantly righteous while baked.

When a women wears shorts that are too small and the bottom of her ass sticks out.

The large fleshy protrusions surrounding the asshole. Sometimes referred to as cheeks.

Another name for the anus.

If your ass could speak the cheeks would serve as lips.

An asslip is one who makes absurd verbal representations, all the while full of, what they know to be bullshit.

Hence, because a person excretes absurdities meant for their ass, through their lips, everything that is said or done by them is considered shit.

Plural- Asslips
Singular- Asslip
*Can be used as a Noun, Verb, Adverb or Pro-noun or any other grammatical term.

a person who's lips smell like ass