Ma'anar ƙamus na "kashe gwanjo" shine sayar da wani abu, yawanci a gwanjon jama'a, zuwa ga mai neman mafi girma. Kalmar “kashe” a cikin wannan mahallin tana nufin aikin bayarwa ko sakawa don siyarwa. Don haka, "auction off" yana nufin ba da wani abu don siyarwa ta hanyar tsarin gwanjo.
