1 definition by Evan Winston
I usually refer to this as the "Man Nod", since it is generally used by Men with Men. I find the nod is used most often when signalling hello to an oncoming car on a lonely country road, when communicating a silent hello to a male pedestrian from a car, or in any situation where one man wants to acknowledge another man with respect non-audibly. In the case of car-on-car nodding, sometimes lifting 1 finger up to say "Hi" from the wheel often suffices too.
Driving on a desolate country road without seeing anyone for hours, I gave the only driver that passed the 'nod of acknowledgement {man nod}' as he passed and he did the same right back.
by Evan Winston October 19, 2005