strumstrum

noun1

1. •
   (disapproving, no longer used) Any stringed musical instrument that is played with the fingertips, especially one considered to be foreign.

   • Their Guitars, if not their Sole, are their darling Instruments, and what they most delight in: Tho’ in my Opinion our English Sailors are not much amiss in giving them the Title of Strum Strums. — 1728