A (prefix here) andy is someone who is very standard and therefore all of their properties and behaviors are easily generalizable. For example, a classic andy is a WoW classic player who acts and communicates the way you would expect a standard WoW classic player to. A retail andy is a WoW retail player who acts and communicates the way you would expect a retail WoW player to. Who is an Andy depends on what you expect of the group you’re trying to generalize them with.