Entry 1 sense Webster, 1913 Gamp /(gămp)/ · IPA /ɡæmp/ 01 n. A large umbrella; -- said to allude to Mrs. Gamp's umbrella, in Dickens's “Martin Chuzzlewit.” 1. A large umbrella; -- said to allude to Mrs. Gamp's umbrella, in Dickens's “Martin Chuzzlewit.”