unˈtoggle,v. (un-2 4 c.) 1859F. A. Griffiths Artill.Man. (ed. 8) 213, [Nos.] 5 and 6..shift side-tackles, untoggle breeching, and span it when the gun is in.1883Man. Seamanship for Boys 129 The first reef-beckets must be untoggled when taking in the third reef.