1. A very large whale fart, synonym to blark.
2. A five o'clock shadow on a recently shaved, normally hairy ass, especially around the butt-hole.
3. Violent but sometimes consentual anal penetration.
Christ, I got caught in an anusblark while scuba diving.
That dude wears his pants so low, I can see his whole anusblark.
I got anusblarked by an pedo on the way home from school today.