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The moment you find the only gas station or indoor toilet for the next 50 miles and sieze opportunity to poop.
Husband: STOP right there at that filling station!! I need to take this poop-ortunity, I've been prarie doggin for the past 10 miles!

Wife: Cut it off at 30 minutes!... and WHO says 'filling station' anyway?!
by tootymcfruggle March 12, 2009
The prime opportunity to take a poop. Being in the ideal situation to defecate, free from worry, interruption, or discovery.
I felt my stomach gurgling from the huge lunch I ate so the moment everyone left the office, it was the perfect pooportunity.
by nylek May 06, 2009
An opportunity to poo.
Man, when we were at the mall, I totally missed my pooportunity, and now I have to wait until I get home.
by KoBoington June 26, 2012