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A fart so voluminous that after it has been expelled from your system you have to tighten up your belt by at least one buckle.

Fartnuckles are best experienced when they're a total surprise.

You'd think it would be call a "fartbuckle" but it's actually "fartnuckle," with an "n." And to be clear, it's not "fartknuckle" with a "kn." It's just an "n."
For any Game of Thrones fans:
one horn is a fartnuckle, two horns wildlings, three horns White Walkers
by Ae5Ea8 January 18, 2017
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