fartoisseur
Connoisseur of farts, one with a rich knowledge and ability to distinguish different people's farts based on: taste, smell, and tone.
Person 1: "Did you eat onions for dinner last night?"
Person 2: "yeah, how did you know?"
Person 1: "I could taste it in your flatulence,I am a fartoisseur."
Person 2: "yeah, how did you know?"
Person 1: "I could taste it in your flatulence,I am a fartoisseur."