Top Definition
When your head goes from the left side to the right and vice versa consecutively because of shame
Do you seriously not know what shaking your head is shake my head is a simple term guys
by Shogunyan September 23, 2016
When you are so dumbfounded in something that occurred.
John: I'd tell you a chemistry joke but I know I wouldn't get a reaction.
Bill: smh(shake my head)
by trybefore April 23, 2016
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