Something done primarily by males who are in the same demographic.

A simple nod that a guy that gives to another guy that acknowledges the fact that they are both aware of each other and accept each other's presence. Usually done without any thought going into it, essentially a non-verbal message of acceptance.

I have no idea why we do this now that I think about it, it's like some primal need to tell each other that we aren't hostile. Maybe it has to do with alpha males or something, left over monkey shit like arm hair I guess.
*guy walks down hall by himself*
*second guy walks in opposite direction*
*look at each other and give a brief nod before passing*
Nod of Acknowledgement
by Unbiased Definitions July 14, 2016
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That look you give your Homeboy, with one eyebrow slightly raisedjust, after someone said something incredible stupid and doesn't even know it didn't make a bit of sense.
I guess we'll just have to give that dumbass boss of ours a sincere Nod of Acknowledgement... so we can keep our jobs.
by Toekneebend August 01, 2016
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The nod of acknowledgement is a standard among guys as a way to let the person know that you see them, without having to resort to using words. Girls will generally not accept the nod of acknowledgement and opt for a wave of the hand and/or a smile, perhaps even accompanied by words. The nod of acknowledgement is a wordless conversation.

The only acceptable response to a nod of acknowledgement is another nod. If you speak, you have broken the point of such a gesture.
Situations in which the nod of acknowledgement may be used:
(1) Walking past a friend to class
(2) Catching a friend's eye across the room to say "hi" without verbally saying it
(3) Giving approval of a friend's actions
by David Fier October 17, 2005
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The all fabled "nod of acknowledgement is an interesting phenomenon. It is, put simply a slight head nod exchanged between males. While its use is documented among females, it is a rare and condition specific phenomenon. While exchanged between friends who, for whatever reason may not want to acknowledge each other verbally, in some places of the world, it is a common greeting among strangers. For example, in the southern United States, it is very common to offer a head nod to another male as you pass each other or get caught glancing at each other. However, as you travel further north, the head nod disappears among unfamiliars. While taking a stroll in NYC, you'd be hard pressed to get any unfamiliar male to return a nod of acknowledgement while simply walking down the street.
Gary and his girlfriend step into the crowded living room, the party in full swing. They notice Tim and his girlfriend. Gary and Tim exchange a nod of acknowledgement across the loud and crowded room, and then return to scanning the party. The two girlfriends do something along the lines of squealing or waving or running to each other and immediately compliment each other's shoes.

2. Dale walks down the street. He passes some guy, and they exchange a nod of acknowledgement.

3. As Lars stands in line at the hardware store scoping out the others waiting in line, he inadvertently catches the eye of Sven, two isles over. They simply exchange a nod of acknowledgement and look away.
by Count Samula October 19, 2005
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Nod of acknowledgement when you see someone and they see you and you both tilt your head forward towards the ground as if nodding your head yes acknowledging that you have seen them
Tom sees Sally and nods his head in acknowledgement a.k.a nod of acknowledgement
by Little hula August 01, 2016
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go by the above definition, but the nod of acknowledgement is sometimes accompanied by a slight raising of the eyebrows and a slight grin...kind of like "ahh, yes. i see what you are doing. good job. good job."
friend 1 sees friend 2 trying to chat up a girl from the other side of the room. friend one then proceeds to nod his head, with eyebrows slightly raised, and grin slightly grinning.
Friend 2: (thinking) Jim can see me talking to this girl...sweet. he's nodding and raising the eyebrows. sweet (nods back)
Friend 1: (nod of acknowledgement towards friend 1) (thinking) Mmmhmm. That girl is hot.
by b3c October 19, 2005
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This has also been spoken as the "guy nod" due to the fact that only guys seem to be the ones that do this, and at ages from middle school on up.
Nod of acknowledgement can be seen when walking through the halls of a school, I guy sees a girl that he knows, and gives her the guy nod to acknowledge the fact that he sees her, but not to draw too much attention to either himself or the situation that's occuring
by Bofo November 11, 2005
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