Japanese

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For pronunciation and definitions of ペンペン – see the following entry.
ぺんぺん
[adverb] akin to the strumming of a shamisen
[noun] (by extension) Synonym of 三味線 (shamisen): a Japanese stringed instrument played similarly to a banjo
(This term, ペンペン (penpen), is the katakana spelling of the above term.)