gum band

Từ điển American Heritage Dictionary 4th

gum bandn. Pennsylvania
See rubber band. [Alteration and partial translation of German Gummiband, rubber band : Gummi, rubber, gum; see gummite + Band, band (from Middle High German, from Old High German. See bhendh- in Indo-European Roots).] 
Regional Note: Many Pennsylvanians are only a generation or two removed from German-speaking homes. Naturally, the English spoken in Pennsylvania would feature words borrowed directly from German. Gum band, the western Pennsylvanian equivalent for rubber band, is derived from German Gummiband, “rubber band.” Smearcase, a Pennsylvania term for cottage cheese, is from Schmierkäse, “soft cheese that can be ‘smeared,’ or spread.” Other Pennsylvania expressions are direct translations of German idioms. For example, in the expression The smearcase is all, the word all comes from German alle, meaning “finished.”