wingman
noun [ C ] uk/ˈwɪŋ.mən/ us/ˈwɪŋ.mən/ -men /ˈwɪŋ.mən/ /ˈwɪŋ.mən/
(PILOT)
僚机飞行员
a pilot whose plane is flying behind and to the side of a plane that is leading a group of planes flying together
(FRIEND)
（尤指在某人尝试接触潜在生意伙伴时候，为其提供支持的）朋友
a friend who supports you, especially a man who supports another man when trying to meet or talk to possible partners
In these kinds of situations it always helps to have a good wingman. 在这种情况下，有一个好的朋友提供支持总是有帮助的。
(SPORTS)
（一些球类运动的）边锋
a player in the wing (= side) position in some team games