Fligener Share definition Flag 1. Poop/pooped. 2. Tired/sleepy. 3. Angry/mad/Ferious. 1. I just took a fligener! 2. I'm so Fligener. 3. I am so fligerous!!! Fligener by GnasherReaper August 19, 2011 0 0 Get merch Get the Fligener mug. Buy Now — $32.95 See more merch