Top Definition
Fecal Particulate Olfactory Simulation, or FPOS, is the process through which one is able to experience a fart.
I was on an escalator and was downwind of someone letting one rip.. it was the worst FPOS ever... I couldn't escape it.
by Yokes April 07, 2005
1 Word related to Fecal-Particulate-Olfactory-Simulation

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