Ma'anar ƙamus na "button riga" ƙaramin abu ne, sau da yawa zagaye, yawanci ana yin shi da filastik ko ƙarfe, ana amfani da shi don ɗaure gaban buɗe riga ko riga. Ana dinka maballin a gefe guda na budewa, yayin da a ke yin wata ‘yar tsaga ko rami a daya bangaren, a rika sanya maballin a daure a rufe rigar.
