when somebody uses urban dictionary to kiss somebody's ass. this is usually done by making a word that vaugely describes a person, kissing ass, then providing that person with a link to the urban dic page. then they can pretend they didnt make it, or use it as a bullshit excuse to get in to somebody's pants.

urban ass-kissing can be reversed by urban ass-kicking, wich is pretty much the opposite, and can be used for breakups, and facebook wars

When you eat dirt for the first time and leave your family to build a shack in the woods