The M.A.N.D.R.O.B.O.T. (Monkeys And Nice Doggies Relax On Bellies Of Turtles) is a giant robot in the likeness of Mandy that appeared in The Grim Adventures of Billy & Mandy and Codename: Kids Next Door crossover episode, The Grim Adventures of the Kids Next Door.
It was designed to shoot lasers; however, it only shot mustard. Mandy herself complained about the acronym and said to Numbuh 3 "What kind of acronym is that!?!", to which she responded angrily "Well, maybe if you weren't in such a rush, I could've come up with a better one!". Mandy also complained to Numbuh 4 about the M.A.N.D.R.O.B.O.T. shooting mustard instead of the lasers she ordered. Then the screen flashes to the KND scientists, in which whom were using the laser to cut through bratwurst.