barnacle

verb 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.”