English
thinsplain
From thin + -splain, after the pattern of mansplain.
Formed from thin + -splain
Proto-Indo-European *tenh₂- ‘to stretch’
…
Proto-Germanic *þunnuz ‘thin’
Proto-West Germanic *þunnī ‘thin’
Old English þynne ‘thin’
Middle English thinne ‘thin’
English thin
Today it means
verb To explain to a fat person (as a thin person) in a condescending manner, presuming the listener's inferior understanding.
Sources
Sources: Wiktionary, “thinsplain”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / thinsplain