Ass Sass
Ass Sass is when a female gets on all fours and presents her ass in a sassy and sexual way.
Ass Sass "She slowly bent over exposing her ass, perked it up while biting her bottom lip and moaned sexually"
ass-sassing
Refers to da sarcastic expressing of one's lack of respect for a particular fellow human by either braying like a donkey or mooning him.
An "ultimate" or "deluxe" form of ass-sassing someone would be if you are able to "train" your sphincter --- i.e., learn to precisely tighten or relax your butt-muscles during flatulence to make your farts "toot" at different pitches --- to hee-haw; that way, you can both drop your pants in da direction of whomever you are ridiculing AND give him a nice loud raspy-raucous "mule-whinney" at da same time.
character ass-sass-ination
Refers to publicly-voiced derisive/uncomplimentary remarks/details ("sass") made about someone regarding his less-than-perfect-looking posterior ("ass").
(a prime example of character ass-sass-ination, from an old "Blondie" cartoon) Mrs. Dithers: In my younger days, I had quite a following.
Mr. Dithers: And she still does, heh, heh, heh... (cheekily placing his hand beside his mouth as if to prevent his wife from hearing his "aside" remark) ...but her dress-maker keeps it well-hidden!
Dagwood (staring down at Mr. Dithers' prostrate figure that's sprawled untidily on the floor as his irately-unamused wife stomps off in a huff): Do you see stars, Boss?
Mr. Dithers: Stars?!?? I can see the entire AURORA BOREALIS!!!
Mr. Dithers: And she still does, heh, heh, heh... (cheekily placing his hand beside his mouth as if to prevent his wife from hearing his "aside" remark) ...but her dress-maker keeps it well-hidden!
Dagwood (staring down at Mr. Dithers' prostrate figure that's sprawled untidily on the floor as his irately-unamused wife stomps off in a huff): Do you see stars, Boss?
Mr. Dithers: Stars?!?? I can see the entire AURORA BOREALIS!!!