I'd bet he's using esiclene / nolotil. In one episode it looked like his arm went up at least 2" from sitting in the hotel to hitting the club.
He's using synthol/site injections in his arms. I noticed the wierd shape the first time I saw the show, but I'm now publically making the claim.
Just watching Ep7 now and Sammi and Ronnie call 'The Situation' Popeye, Big arms little body HAHAHAHAI fucking love this show
you know they read what people say over the internet, and then modify the script of the scenario for the next episode right? giving people what they want, trying to fake reality, hence the concept of "reality show"...