Sad as it sounds, we quite often use "Clear Blind, Clear Visual" when trying to get out of a blind or awkward junction, if I cant see the road on the passenger side, I will say clear blind and the wife will check and replies clear visual, I don't move until she utters the words. Works well, taken from blind pilotage exercises on a pussers war canoe
Clear Stern Arcs
All round sweep (Sundodgers)
Check six (WAFU)
Talking of aviators - the term 'Wingman' is of shipborne and not aviation origin.