Edges or Tapeline?

Listen here, Addison, you lil' rascal. The joke here is that Akeld asks whether he should get either "edges" (referring to neat or well-groomed edges, probably on his hair) or "tapeline" (a measuring tape to help cut the edges straight). The joke lies in the response where the speaker suggests messing both up. Explain bear thinks it's kinda funny because you don't expect the person to suggest botching it on purpose.