classmate 1: "Is speed a vector?"
classmate 2: "No speed only has magnitude not direction."
classmate 2: "But velocity is a vector because it has both. Velocity can have a negative sign in front of it to tell you its direction."
classmate 1: "I see, thanks mate"
A nerd who goes by the name of Vector. It's a mathematical term, represented by an arrow with both direction and magnitude. Vector! That's him! Because he's committing crimes with both direction and magnitude.