When a person has a lot of tattoo work, usually as full sleeve and commonly done in a traditional or neo-traditional style, where everything is a separate piece and not integrated together with gaps of blank skin between each piece.
"I want to get a sleeve started but I've decided that I want it to go together, instead of being like all these refrigerator magnets that I already got going on here."
a kind of chick magnet but this guy attracts refrigerators instead, a refrigerator being a woman built like a refrigerator.
dude did you see that guy's woman?? he must be a refrigerator magnet