glump noun 1verb 2forms 3 noun1 •A globular clump. verb2 •To have an affinity for clumping into a glob.“There's some ionic residue on this lamp. Glumpus was here for sure.” “Glumpus?” “I decided to give the nanites a name, since they glump so much.” “Aw, cute.” — 2024 •(informal, no longer used) To be glum; to sulk. formsglumped · glumping · glumps