(US, vulgar, idiomatic) To hurry; to move quickly, especially to leave.

(slang, vulgar) Rough, aggressive; powerful and successful. / (slang, vulgar) Excellent, first-class.

(Canada, US, vulgar, slang) The gluteal cleft.

The onager.

Produced in an incompetent or desultory manner, or of something lacking in quality or substance; of low rank; incompetent.

(slang) To perform a task incompletely or carelessly. Usually considered derogatory or insulting.

(slang, vulgar) Indicates disapproval, disagreement, or disbelief, often with a tone of disregard, disdain, or disgust, referring to the buttocks.

(slang, vulgar) I; me; myself; oneself in the third person.

simple past tense and past participle of kick ass

Third-person singular simple present indicative form of kick ass