Chris Brown continues to keep it classy. The singer got into a Twitter fight with comedy writer Jenny Johnson, who's been giving Brown a hard time since his 2009 arrest for beating then-girlfriend Rihanna.

One tweet by the comic read, "Call me old-fashioned, but Chris Brown should be in prison." It was retweeted 1,869 times.

But Brown did not respond until Johnson posted the following on Sunday: "I know! Being worthless piece of s--- can really age a person RT @chrisbrown: I look old as f---! I'm only 23..."

This sparked a storm of NSFW insults toward Johnson that were graphically sexual, including several where he misspells the word "ho."

As of late Sunday, Brown's Twitter account went offline.

We can't print his responses here, but if you're really interested, you can check them out here.