Top Definition
A term created by Luna Lovegood , in a fanfiction .

Flumpawumps accumulate in teenage boys and make them do silly things such as: trip over their words near girls, follow blond haired boys around in the halls, or in rare cases boys will start to wear robes with weird moving objects in them and have creepy twinkling eyes.
The most common extraction is with the mouth.
AKA, a blowjob
Detaching her hand, she quickly devoured his fully erect wand whole. He gave a low moan, and in response she applied some suction and started bobbing her head back and forth; each motion punctuated with a rhythmic slurping noise.

Harry threw back his head and let out another loud grunt. Giving himself a few seconds to formulate a response, he then asked, "Luna – Oh Merlin! – what's a Flumpawump?"

Luna, as if not hearing him, continued to suck and caress his member in her mouth with her tongue.

Harry let out a low moan and before saying, "Luna?"

With a nice slow lick from base to tip, she stopped at the top. Gripping him firmly in her small hand, she started to pump his throbbing member once again.

Waiting a beat she answered, "Flumpawumps accumulate in teenage boys and make them do silly things such as: trip over their words near girls, follow blond haired boys around in the halls, or in rare cases boys will start to wear robes with weird moving objects in them and have creepy twinkling eyes. There is no cure if one were to let the Flumpawumps run rampant, so I'm sucking out the Flumpawumps while I still can." Taking a deep breath, she put her mouth back to work.
by Freddoyouhaveflumpawumpslol October 16, 2010

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