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n. When an individual sticks 4 of their five fingers(usally the pointer, middle, ring, and pinkie) up their butthole, pulls them out, and proceeds to smell them in order. It is usally followed by a discription of the smell along with offering others to smell.
Example 1: David ripped some heavy ass, and then proceeded to do the 4 finger sniff.

Example 2: After not washing his butthole for 2 days, David did the 4 finger sniff and facebooked about the smell.
by T2theV April 23, 2011
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