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2 definitions by ninjagoblin

When an obese woman lays on her stomach and bends her arms backwards causing her shoulder blades to come together. an man then puts his penis between her shoulder blades and begins thrusting back and forth thus causing his testicles to "roll" over her "blades".
Man i took that neck farter home last night and went rollerblading with her.
by ninjagoblin May 24, 2009
When someone is so overweight that their butt crack rises all the way up their spine to their back. This extended crack provides a channel for an anal fart to follow up thus seeming to come from the persons neck.
dude i was screwing this chubby chick from behind when i smelled something rank and that's when i realized she neck farted.
by ninjagoblin May 24, 2009