noun, masculine/masˈtweɾθo/plural: mastuerzos
cress (a plant, Lepidium sativum); dumbass
Synonyms: lepidio, tonto, patán, tarugo, zoquete
Inherited from Old Spanish mastuerço, from Latin nasturtium. Doublet of nasturcio. The variant nastuerzo is influenced by the word's Latin etymon.