Don Nux shows us that sweet, sweet knuckle tattoos aren’t just for kids any more, anyone who is dedicated enough can express their passion on their hands:

Here’s a pic of my knuckle tats. They are about 4-6 months old. The meaning (RIG4 DIVE) is to rig the ship for diving, a term heard on board a submarine while surfaced, but getting ready to go deep. Yeah, I was a submarine sailor.