Means "shaking my dick head." Used when referring to masturbating
Friend: "Hey, wanna come over?"
Me: "Give me 5 minutes... smdh"
by Sr_Papacito December 4, 2011
Get the SMDH mug.
SMDH is an acronym for either "shaking my damn head," or "so much damn hate," either way it is to be used as a response or as a stand alone phrase.

Usually SMDH has a negative connotation, used in a way to respond to a direct action or words spoken to you.
I chose Nami top in a norms, my team told me to go play with bots then dropped queue, SMDH.
by Hirbeth O'Larris April 20, 2016
Get the SMDH mug.
SMDH is an acronym for, "Shakin' my dickhead." Used when you witness an event that leaves you speechless. Or used as a follow up dance subsequently after the helicopter.
Example1: I saw this guy driving down the wrong side of the road today. Smdh shakin my dickhead

Example2: I got out of the shower at my girls house. She was watching american idol in the bedroom. So I stood in front of the tv, dropped my towel, smdh shakin my dickhead and broke out the helicopter on her.
by Nate Blaze June 30, 2011
Get the SMDH mug.
I was thinking with the wrong head last night and my girlfriend slapped me in front of everyone. smdh...
by steelers2383 November 7, 2010
Get the SMDH mug.
If you are commenting on a site where there are moderators, and you want to write 'suck my dick hoe' in a reply to some old windbag but still want to outfox the mods, just write...
'...everyone has their opinion i guess...smdh'. For further sublimation of said phrase, insert (shakin my damn head) right afterward so the noobs/trolls/oldfarts dont pry any further.
It's FUN to insult someone when only a select few understand the insult, but the moderators can't censor it without hesitation, if at all.
Dumb blogger: all _____s are bad, stupid, lazy.
You: you obviously were dropped as a child, smdh. lulz.
Dumb blogger:?
You: smdh, you know you want to (shaking my damn head).
Dumb blogger:???
by engrish/ebonics debunker July 25, 2011
Get the SMDH mug.
It means "shake my dick head". But you also have to say "SMDH at you," otherwise, you would just be shaking it for no apparent reason except to get off. So, it basically means the same thing as the original except more of a tisk tisk with exposed genitalia.
Dude 1-"Man, I lost that chick's number from the other night!"
Dude 2-"Sigh...smDh at you."
by CaryGrant April 19, 2011
Get the SMDH mug.
Shaking My Demon Head.....

PSA: Commonly used acronym by Nigerian men. Ladies/Gents, keep your eyes and ears wide open; when you hear a man say/txt/msg/whatever is yet to come, RUN AS FAST AS Olusoji Adetokunbo Fasuba! They are most probably going to hurt you, break you, and turn you into an emotional wreck!
SMDH.

aka (proceed speaking to me with caution, I am most likely a Nigerian Demon/Fuckboy)
by mysticspellbounder December 27, 2018
Get the SMDH mug.