A weed dealer not being able to do business on 4/20 is like a Best Buy having to close on Black Friday.  So a very strange man got some very bad news this week.

58-year-old Kevin Gibson is a weed dealer in Miami, Florida.  And he was arrested on Tuesday night for possession of marijuana with intent to sell . . . so he had to spend his 4/20 in jail.

But the strangest part about him?  He’s got half a beard.

The left half of his face is covered in thick white facial hair . . . full bushy sideburns, a mustache, and a long beard.  But the right half of his face is totally shaved . . . no sideburn, no mustache, no beard.

The cops didn’t offer up any explanation for WHY he’s half shaved?

He’s still in jail on an $8,000 bond.

See the crazy mugshot here