The Brit, 39, will have the scribbled words “Leo knows everything” added after losing a bet with Revenant co-star Leonardo DiCaprio, who predicted Tom’s 2016 Oscar nomination.
He showed his body art, which includes inkings of the Union Jack and a crow, as he posed in a photoshoot for Esquire.
Tom revealed: “I haven’t got it yet. It sucks. He wrote in this really s***ty handwriting.
“I was like, ‘OK, I’ll get it done, but you have to write it properly’.”