12/05/2011 04:24 pm ET | Updated Dec 05, 2011

Top 7 Twitter Hashtags Of 2011

As part of Twitter's year-end review series, the microblogging site is looking back on the top trends, topics and events of the past year. On December 5, Twitter released a roundup of the year's hottest topics. This marks the site's third installment in its review of 2011. So far Twitter has noted the year's top stories, most popular new members, in addition to the year's hottest tpoics; only two more installments remain.

The list of Hot Topics and Top Hashtags charts the keywords that rose the fastest in conversation over the course of the year. This reveals what grabbed our attention most dramatically in 2011, and which events, inventions, changes and ideas made the deepest impression on us.

Among the topics discussed are food and drink (McDonald's McLobster sandwich scored the top spot on that list), actors (Charlier Sheen #winning), tech (Mac App Store) and many, many more.

Take a look at the slideshow (below) to see 2011's list of the top 7 most popular hashtags, concerning topics that range from celebrity news and world events to Twitter's unique catchphrases. Read on to view Twitter's list of the year's top stories, which aren't necessarily the most retweeted Tweets of the year but are stories that are iconic within Twitter's own history. (View our slideshow of the top 10 Twitter stories here.) For more year-in-reviews from around the web, check out Facebook's 15 most-shared posts of 2011, Yahoo's 10 most-searched topics of the yearand Bing's 9 most-searched gadgets