Mac the Muscle is an animatronic shark at Freddy's Fantasy Water Park. It is one of three sharks in the park's main attraction, Freddy's Sea Life Mechaquarium, and plays a minor role in the Tales from the Pizzaplex story, Submechanophobia.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
