limpet

noun

1. Any of various gastropods with a conical shell shape (patelliform) and a strong, muscular foot that they use to create strong suction to cling onto rocks or other hard surfaces.
2. (British)Someone clingy or dependent; someone disregarding or ignorant of another's personal space.

   “He stuck to me like a limpet all day!”

verb

1. To gather limpets.

   “Mother visited the little cottage over the hill, and found Lisette's story to be quite correct; and many times the Frenchwoman blessed the day when Margie went limpeting and Lisette lent the old knife to the golden-haired little English lady.”

   “Razor-fishing, sand-eeling and limpeting used to be popular activities but have declined in importance.”