Andy Gump n.[the eponymous cartoon character created by Sidney Smith in 1917; he was virtually chinless; in southwest US the banded sand snake, with its deeply countersunk jaw, is an andy gump snake](US) a conspicuously receding chin; a notably prominent chin.Show quotations1968–70 in DARE questionaire.
![[US]](/static/img/flags/us.png "United States")