Charles Dion McDowell — better known as the notorious “Wide Neck” perpetrator on the Internet — has run afoul of the law once again … and this time the charges are way more serious — he’s been accused of sending naked images to a minor … TMZ has learned.

McDowell was taken into police custody on February 19 and charged with multiple felonies, including felony transmission of video/photo of nudity without consent, as well as electronically furnishing obscene material to a minor, and making harassing phone calls, according to the Cherokee County Sheriff’s Office in Georgia.

McDowell posed for a mug shot showing off his famous neck, which is the size of a tree trunk.

The sheriff’s office says McDowell is being held without bond … but refused to provide specifics on the alleged crimes, citing a Georgia law that prevents the release of information about child abuse.

This isn’t McDowell’s first brush with the law … he first crossed paths with the police in Lee County, Alabama after he allegedly tried to elude cops during a reckless driving incident. His congenial smile coupled with his massive neck made his mugshot go viral — and he soon became an Internet sensation.