When 'smh' isn't enough to describe how unsatsified or upset you are. Also use it when a conversation gets stale and you need to typr something random.

when more head shaking is needed than a standard 'smh'

This is what you say when you smh so hard that it's infinite. Here's what the acronym stands for . . .
s - smh
m - my
h - head
my - my
head - head
So in other words, directly transalted to English it means, "smh smh . . . my head my head . . ." with each ellipses signaling that it goes on infinitely.

A bastardization of smh.

Created by the meme god Danny Gallagher smh my head is when smh doesn't suffice to the amount of head shaking required to be disappointed in something.

Created by the instagram meme gods smh my head is when smh doesn't suffice to the amount of head shaking required to be disappointed in something.

A different version of the acronym SMH (shake my head)

A humourosly ironic way of saying Smh (because it’s not supposed to be said like that)