From GNU Collaborative International Dictionary of English, version 0.54: Gump (gŭmp), n. [Cf. Sw. & Dan. gump buttocks, rump, Icel. gumpr.] A dolt; a dunce. [Low.] Holloway. [1913 Webster]
Gump (gŭmp), n. [Cf. Sw. & Dan. gump buttocks, rump, Icel. gumpr.] A dolt; a dunce. [Low.]
Holloway.
[1913 Webster]