verb (used with or without object) Informal.
Word Watch 2013: -splain
The term mansplaining received the high honor of being nominated as one of the “most creative” new words at the American Dialect Society 2012 Word of the Year vote. In addition to being creative, this term, particularly the -splaining part, has proven to be incredibly robust and useful as a combining form in 2013, and it deserves a mention as Word of the Year buzz …
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Origin of 'splain
informal shortening and alteration of explain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019