A thought fart is a thought that lingers. It weighs on your mind.
And it's birthed from a ponder.
Very similar to a mind fart but a mind fart is maybe more expansive.
Examples of a thought fart are
I am stirred by disturbances that have yet to disturb.
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Have you ever heard the knock, ahead of time? A premonition, a knowingness.
Greyhounding - having anal sex
He was greyhounding her when his dick got pricked by some of her mounds got nuts.