willy n (Brit)
informal a childish or jocular term for →
penis
willy-nilly adv
1 whether desired or not adj
2 occurring or taking place whether desired or not
(Old English wile he, nyle he, literally: will he or will he not; nyle, from ne not + willan to will1)
willy wagtail n (Austral) a black-and-white flycatcher, Rhipidura leucophrys, having white feathers over the brows
willy-willy n (Austral) a tropical cyclone or duststorm
(from a native Australian language)