to attach or adhere to something (can be either literal or figurative), like the crustacean of the same name that attaches itself to the hull of a ship
“I walked into one of those high-end stores on Rodeo Drive and I was amazed at how few products were on display. The floorspace was wide open. I guess they need all that open room to house the army of sales associates that stand ready to barnacle their lips to your keister.”
Guy 1: Yo i talked shit about lil barnacle and he now owns my house and my toilet I have to shit outside now .
Guy2: thats why you don't talk shit about him
Market town near Durham, thought by some to be one of the first locations of yarndling in the north of England. Scrimming basins have been discovered from the air, dating back to Paleolithic times.