JUICER - Someone who uses steroids. Juicing is also used to describe the use of steroids. Sorry, we're not talking about a vegetable drink here.\nEXAMPLE: "Dude be looking like Hulk. He straight up juicin', yo!"\nBRO SCIENCE - Word-of-mouth gym knowledge. The most unreliable gym "science" ever.\nEXAMPLE: "Bruh, fat can be converted to muscle, bruh."\nGAINS - To increase muscularity.\nEXAMPLE: "Bruh, I'm about to slam this steak and weights and get ALLL THESE GAINZ."