Arsesmart
//ˈɑːsmɑːt// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A water pepper plant, of species Persicaria hydropiper (formerly Polygonum hydropiper). uncountable
Synonyms
All synonymsEtymology
From arse + smart, because the plant stings when it touches bare skin, and was often laid in beds to kill fleas.
Related phrases
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.