Topper

Part of speech: noun (n.)

1. One that tops, in any sense of the verb; specif.:

2. A cover of a top layer or part. [Colloq.]

3. One that excels, surpasses, or is extraordinary of its kind. [Slang]

4. Any device for cutting off tops; as, a turnip topper.

5. One who tops steel ingots.

6. A three-square float (file) used by comb makers.

7. A top hat. [Slang or Colloq.]

8. Tobacco left in the bottom of a pipe bowl; -- so called from its being often taken out and placed on top of the newly filled bowl. Also, a cigar stump. [Slang]