plinky-plonky UK /ˈplɪŋkiˌplɒŋki/US /ˈplɪŋkiˌplɑŋki/adjective 2exclamation 1forms 2 adjective2 •(informal) Especially of a musical instrument such as a piano: making sharp, tinny sounds; plinky."Plinky Plonky" is the title of a novelty fox-trot waltz, the composition of Mr. Harry Slogden, which is one of the features of the Drury Lane pantomime, and promises to be a very successful number. — 1919 •(informal) Having a simple, repetitive, percussive melody.It tends to be a social activity, so in most nûat phǎen boraan [traditional massage] places don't be surprised to hear the gossip of the day rather than plinky-plonky New Age music. — 2007 exclamation1 •(informal) Used to represent a series of sharp, tinny sounds, especially those made by a musical instrument such as a piano: plinkety.She put another record on the turntable and gently lowered the needle. Plinky plonky plinky plonky— […] — 1984 formsmore plinky-plonky · most plinky-plonky