nettle
noun
°A herb of the genus Urtica, which is covered with stinging, mildly poisonous hairs, causing an instant rash.
°The non-stinging plant deadnettle, also in the nettle family, Urticaceae (named after the above).
verb
°Of the nettle plant and similar physical causes, to sting causing a rash in someone.
°To pique, irritate, vex or provoke someone.