1. said whilst performing an involentary act of retardation
2. used to discribe ones unforseen spazmic movements/actions
can also be used to refer to a person or being who "schneebles" a lot
often said with an accent, extending the "ee" sound to "schneeeeble"
India "omg did you just twitch?"
Emily "Aha! Yer"
India "Ahhh your such a schneeble sometimes!"