Steve-O got his first face tattoo, and if anyone calls him d**kface ... well, he can blame Post Malone for drawing a penis on his mug.
The "Jackass" star enlisted Posty for his first face tat, getting inked up on camera as he prepares to go on his cross-country comedy tour.
Check out the video ... Steve-O is in obvious pain as Post draws a big penis and balls over Steve-O's right eyebrow. Hey, no pain, no gain.
Steve-O got the face tattoo last Friday night a day after his 50th birthday .