Tailed meaning : To follow and observe surreptitiously. To hold by the end; said of a timber when it rests upon a wall or other support; with in or into To swing with the stern in a certain direction; said of a vessel at anchor. To follow or hang to, like a tail; to be attached closely to, as that which can not be evaded. To pull or draw by the tail. (often in combination) Having a tail. Of certain butterflies, having one or more filamentous projections on the tornal section of each hind wing.