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Jabberwalkey is when a whole bunch of tweakers and their friends do something dumb and loud like a dog that never stops barking, growling, or yipping, and it sounds like a bunch of nails clicking on the floor.
My cousin's Jabberwalkey was so loud I thought the neighbor's dog was possessed.
The whole group was Jabberwalkeying in the park like they were trying to wake the dead.
I had to leave the room because the Jabberwalkey was giving me a headache.