Top Definition
A term of derision for someone who likes to hang out with people who go hiking and backpacking even though they themselves rarely (or never) hike or backpack.

The term especially applies to poseurs on internet forums devoted to hiking and backpacking.
STFU, Warren, you don't know anything about hiking, you're just a pack sniffer.

First spotted on the internet in 2005 on
by Fred E. September 22, 2007
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