n. & v.
n. 1 a climbing plant, Humulus lupulus, cultivated for the cones borne by the female. 2 (in pl.) a the ripe cones of this, used to give a bitter flavour to beer. b Austral. & NZ colloq. beer. 3 US sl. opium or any other narcotic.
v. (hopped, hopping) 1 tr. flavour with hops. 2 intr. produce or pick hops. 3 tr. US sl. (foll. by up) stimulate with a drug. (esp. as hopped up). hop-bind (or -bine) the climbing stem of the hop. hop-sack (or -sacking) 1 a a coarse material made from hemp etc. b sacking for hops made from this. 2 a coarse clothing fabric of a loose plain weave.
[ ME hoppe f. MLG, MDu. hoppe ]