Some celebrities use their Twitter accounts to share behind-the-scenes details of their lives and careers; for others, it's mainly just a way to promote their latest project. But for Chris Brown, the popular social networking site seems to be mainly a public forum for venting about whatever -- or whoever -- is making him angry. Case in point: Brown's recent Twit-beef with wrestler CM Punk.

It all started when CM (or is that Mr. Punk?) issued a challenge to Brown on Feb. 19, referencing his arrest for assaulting Rihanna by tweeting, "I would like @chrisbrown fight somebody that can defend themselves. Me curb stomping that turd would be a #wrestlemania moment."

That's all it took to produce a flurry of back-and-forth barbs between the wrestler and the singer, including Brown accusing Punk of being such a heavy steroid user that it's "utterly impossible for him pleasure a women [sic]" and Punk daring Brown to "put some gloves on and get in the ring" before shrugging, "I know none of these things will happen because Chris Brown isn’t a man."

Punk made the latter comments during a TwitVid dedicated to upping the ante in the feud while insisting, "I’m not here to start controversy, or to gain publicity, or anything like that." (Smooth.) Never one to leave an insult alone, Brown retorted, "the video u just posted was cute! It's so funny how defensive u are. And the fact that I really don't know who you are and could give a s--- is the funny part!"

It was just the first salvo in a rant that found Brown insisting that he's "never 'ANGRY' when I speak my mind on Twitter" and lamenting "I miss the real wrestlers" before promising, "today will be the last day I bring @cmpunk existence up! The confrontations that people continuously bring my way are very amusing."

This latest feud seems to have run its course, but given that we're only two months into the year and we've already seen Brown taking on everyone from random haters to Miranda Lambert, it seems likely that we'll see Brown blasting more enemies before 2012 is through. Who's next -- Josh Groban? Rachael Ray? Louis CK? Tight pickle jar lids? Anything is possible.