He then instructed viewers to go online to urbandictionary.com, a Wikipedia-like website that allows users to enter definitions for words and slang, to redefine the magazine’s new name “in the most jaw-dropping terms imaginable.”

…As of 3:30 p.m. Friday, the website had attracted 412 definitions, most of which carry descriptions so graphic in nature they can’t be detailed here.

Now, there’s no official Facebook theme team, decreeing these silly fads from on high. These are grass-roots memes that spread virally throughout the site, making them difficult to trace back to an origin with any certainty.

Ted Sporer, a Des Moines attorney and veteran GOP strategist, was so upset by a group of British protesters who last week criticized former prime minister Tony Blair that he used a derogatory slur against homosexuals to attack them. However, Sporer says he was unaware that the term he used was considered an anti-gay slur.

Sometimes, you get an entry filled with innocent pleasantries. Other times, though, you find definitions that are far less family-friendly. Here are 10 of our favorites.

The site made its name on user-submitted scatological definitions, and a Facebook status trend is capitalizing on it.

They’ve been participating in “Doppelgänger Week,” the current Facebook trend, which follows last month’s “What Color is Your Bra?” meme. And flows into “Urban Dictionary Week,” prompting Facebook users to look up their names and post the definition.