Picking the crusty boogers from the outer edge of your nostril in one fluid, sweeping motion (by a rotation of the hand). Performed solely with the index finger in the nose. Commonly defended as "itching the inside of my nose"

licking someone else's asshole.
aka the most disgusting oral sex out there..

objectives and missions within the game "skyrim"

To lick someone's asshole for sexual pleasure.

When one slurps on another's asshole

Licking of the anus

the action of licking ones asshole.