Verb. The verb "to McFlurry" involves person with McFlurry, usually in fast moving vehicle, lauching said ice-cream through open window of another car on a hot sunny day causing massive internal mess and stickyness to occupants of unfortunate vehicle. The "McFlurryer" (noun), or perpetrator of the throwing act, traditionally speeds off, usually laughing manically.
"We McFlurryed some old git at the traffic lights last night, it was hilarious"
by Tigga April 07, 2004