English
rumpy-pumpy
From rump + -y + pump + -y.
Formed from rump + -y
Proto-Germanic *rumpō ‘trunk of a tree, log’
Middle Low German rump ‘the bulk or trunk of a body, trunk of a tree’
Old Norse rumpr
Middle English rumpe
English rump
Today it means
noun Sex.
Sources
Sources: Wiktionary, “rumpy-pumpy”. 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 / rumpy-pumpy