gump /ɡʌmp/ noun3 •(US, old-fashioned) A foolish person.[…] I’d no idee of going to be shot at for money, like these ’ere fools and gumps that goes down to the Florida swamps, to be shot at all day by Ingens, for eighteen pence a day. — 1839 •(slang) A weak or soft person. •Clipping of gumption formsgumps
GUMP phrase1 •Acronym of gas (fuel), undercarriage (landing gear), mixture (fuel mixture), prop (propeller setting); a mnemonic for landing an airplane; particularly propeller-propelled carburated powered one with a retractable landing gear.