Aaron Carter Fires Back at Drug Use Accusations & 'Male Body Shaming' After Arrest: 'It's Not Funny!'

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Aaron Carter
is speaking out against speculation that he's addicted to drugs after being arrested in Habersham County, Georgia, on Saturday, on charges of DUI refusal, possession of marijuana and possession of drug related objects.

On Monday, the 29-year-old singer went on yet another in a series of Twitter rants following his release on Sunday, this time targeted towards critics who say he looked like he was on drugs in his police mugshot.

"I will NOT continue to tolerate such lies about me regarding drug use with alleged meth, heroine, crack - it's not funny!" Carter wrote in a series of tweets.

NEWS: Aaron Carter Goes on Twitter Rant After His Arrest: ‘Never Be Bullied Into Silence'

The singer -- who has said in the past that his small frame is a result of a hiatal hernia that he was diagnosed with at age 19, and not drug abuse or addiction -- said that the speculation about his weight was "male body shaming."

"This body shaming must end now! It's amazing how many of you who can hide behind your screens and type it, but wouldn't say it to my face," he wrote. "Ending this with the fact that there are so many bullies out there and this male body shaming must continue to be addressed."

WATCH: Aaron Carter Reveals Condition He Says Makes Him 'Skinny': 'I Didn't Choose That'

Carter railed against his critics earlier in the day as well, sharing a shirtless snapshot of himself, which he captioned, "Walk away from gossip and verbal defamation. Speak only the good you know of other people and encourage others to do the same."

He also wrote, "Never be bullied into silence. Never allow yourself to be made a victim. Accept no one's definition of your life; define yourself."

WATCH: Aaron Carter Posts 'Heartbroken' Message and Photo, Denies Having a 'Mental Breakdown'

While Carter steadfastly denied using "heavy drugs" on Twitter, the singer's rep said on Sunday that he "holds a medical license for medical marijuana for his long-standing anxiety."

Upon his release from jail, Carter shared some harsh words with his older brother, Nick Carter, who had offered him support via Twitter hours after his arrest.

The Backstreet Boys star wrote, "To my brother: I love u no matter what & if u feel the need to reach for help, I am here and willing to help you get better. Family isn't always easy, [but] we're all here for you."

WATCH: Aaron Carter Opens Up About His Sobriety: 'The Misconceptions Are That I'm a Meth Head'

In a statement released through his rep, Carter shot back at his brother's tweet, sharing, "If my own blood (Nick) truly cared about my well-being, why wouldn’t he call me directly and have a conversation instead of making this about him through a very public forum? That’s not cool at all to use me for his PR and kick me while I am down."

For more on the singer's arrest and the tensions between him and his older brother, check out the video below.

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