NOUN (3)

1. someone who expresses contempt or indignation by uttering a snorting sound;

2. something outstandingly difficult;
- Example: "the problem was a real snorter"

3. something that is extraordinary or remarkable or prominent;
- Example: "a snorter of a sermon"
- Example: "the storm wasn't long but it was a snorter"

The Collaborative International Dictionary of English v.0.48:

Snorter \Snort"er\, n.
   1. One who snorts.
      [1913 Webster]

   2. (Zool.) The wheather; -- so called from its cry. [Prov.
      Eng.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

snorter
    n 1: someone who expresses contempt or indignation by uttering a
         snorting sound
    2: something outstandingly difficult; "the problem was a real
       snorter"
    3: something that is extraordinary or remarkable or prominent;
       "a snorter of a sermon"; "the storm wasn't long but it was a
       snorter"