D defs.my
Entry 3 senses Webster, 1913

Topper

/täp'-ẽr/ · Top·per · IPA /ˈtɑpɚ/
01 n. One that tops, in any sense of the verb;
  1. 1.
    One that tops, in any sense of the verb;[Colloq.]
  2. 2.
    A top hat.[Slang or Colloq.]
  3. 3.
    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]