1878, in the meaning defined above
Time Traveler for yum-yum
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From the Editors at Merriam-Webster
Tasty Only in Afterthought: 6 Words...
We use these words to describe food, but they began their lexical lives in other territories
Cite this Entry
“Yum-yum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yum-yum. Accessed 25 Jun. 2022.
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