(n) the fecal matter that is excreted from the anus that tends to back up a toilet or whole septic system.

Sometimes, a person may actually feel the scat snaking it's way down their intestinal track before it becomes it's final form in the toilet.

Gas may accompany this person for many hours before expelling a poobar.
Seth: I feel a poobar brewing in my system. Should have to go anytime now, with all the farts I been letting out.

Sarah: Yeah... No kidding!!!
by geckopaws February 9, 2011
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Cheap pot that's got all kinds of chems and plastics in it to bulk it out
Jay: Hey man just got some pot on the cheap, doesn't seem right...
Jimmy: Probably poobar man, next time score some green.
by T@richards October 20, 2011
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energy bars (i.e. powerbars, et al) which have the appearance of a turd.
'That poobar sure looks mighty delicious!'
by TwizeeK January 23, 2004
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The bar of soap that is reserved exclusively for your anus.
"Dude, you smell like ass. I hope you used the Ivory and not the Safeguard, thats the poobar."
by tontothetablist April 11, 2006
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A colloquial description for hashish, referring to the appearance.
Can you get me an eigth of poobar please.
by L-Tron May 12, 2008
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