Means "Suck My Dick" usually said by some annoying as hoe thinking they got a dick.
Fuckboy: Hey cutie.
Annoyed Hoe: Smd
Fuckboy: damn
by Thuggrandma December 22, 2016
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Smed means Suck my dick. Every straight guy uses this as an insult or to a girl to give him a blow job. But be cautious it's known that saying this to gay people offends them and they'll be all like "WAHHHHHHHHHHHHHHHHHH i'm telling my boy friend you bitch. he jammed his dick right up my mangina mother fucker!!"

It's also a common saying popular on the internet by trolls who are about to rape you or just want to depress you because you don't have a life and sit at the computer all day.

Your chances of epic win are 50% and your chance of epic fail are 50.0000000000000000000000000000001%
Example 1

Carl: Smd, girl.
Hoe: Oh okay...*pulls off Carl's pants*
Carl: Ahhh, that feels good bitch.

Example 2

Internet Troll: All of you smd, fags! erutrehiofogidhifhh
User 1: Shut up, cunt.
User 2: I'm going to report this bitch.
Moderator: Cuss or fighting is not allowed on our site, due to not following the rules you get a warning. Next time you will be banned.
Internet Troll: Go fuck yourself losers. lol
*Banned*

Example 3

Steve: Smd faggot.

Gay guy: WAHHHHAHHHAAAA! YOU'RE MEAN I AM TELLING MY BOYFRIEND! He jammed his dick right up my mangina mother fucker!!
Really gay faggot(bf): What's wrong man?

Gay guy: HE'S MEAN!!
Really gay faggot(bf): Who? Him? You smd you bitch...
Steve: Oh shit...
by azZ_kIcK3R June 15, 2009
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An acronym for the phrase "Shake My Dick" invented by Shrek and Fiona
Person A: "I bought that really expensive sock that I know I couldn't afford. :("

Person B: "SMD."
by boooooooooon December 11, 2009
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shakin my dick

Similar to the well-known "smh (shakin my head)
Person 1: I was gonna go to the mall today, but it was closed.
Person 2: smd
by hater2332 August 22, 2010
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"SMD" is the perverted equivalent of "Smh." It is the acronym for "shaking my dick." Can be used when in disappointment of someone, preferably out of fun. It can also be used in the context for pure recreational sport, SMD'ing is a game to enjoy with friends. (Not literally, of course...unless you're into that.) Can also be written as "Smd," "S.M.D," or "smd."
"Aww man, I'm gonna bomb this test today..."
"You always were a failure...smd."

(girl taking her clothes off)
"AWWW SMD!"

(just for random fun)
"S.M.D!"
by littlebrownbro December 14, 2011
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