What is "snuff dipping"

Snuff \Snuff\, n.

1. The act of snuffing; perception by snuffing; a sniff.

2. Pulverized tobacco, etc., prepared to be taken into the nose; also, the amount taken at once.

3. Resentment, displeasure, or contempt, expressed by a snuffing of the nose. [Obs.]

   Snuff dipping. See Dipping, n., 5.

   Snuff taker, one who uses snuff by inhaling it through the nose.

   To take it in snuff, to be angry or offended.
   --Shak.

   Up to snuff, not likely to be imposed upon; knowing; acute.