The act of catching a fart bubble with cupped hands while immersed in a body of water, i.e. a bathtub, jacuzzi, swimming pool, etc., for the purposes of personal enjoyment, relocating the bubble to someone else' location, or incriminating another for the offending stench.
John caught Jane in the act of gorb snatching just before she let the rancid bubble pop right under his nose.

Bill was known among his friends on the swim team as a notorious gorb snatcher.
by Chupacabra Ric January 2, 2011
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