SDM 

Means “small dick maxx.” Homie got a boner and everyone knows the truth

“Bro did you see SDM earlier at lunch”
“SDM got a boner off Riley”

SDM by halfbowlcut June 16, 2019

sdm 

SDM is an acro for "size does matter"

"oh yes... SDM... that's why I dumped Fred."

sdm by Cajun September 25, 2005

SDM 

Abbreviation for "She ditched me".
When a guy gets attention from a woman at a bar, and then she withdraws from him in a hurry.

This chick in a red dress just taught me how to drink scotch, and then she ditched me (SDM)!

SDM by Hoosfoos July 28, 2011

SDM 

Short Dick Man

Girl one: So, girl spill the beans about the guy you went home with
Girl two: There is nothing to spill because he suffered from SDM.
Girls one: What is that?
Girls two: Hew as a Short Dick Man!!

SDM by deemoneyshot April 18, 2014

sdm 

spank da monkey!
also known as masturbating, or pleasuring oneself

ho...ho...hold on, let me sdm for a bit

sdm by MR. SCRATCHIES June 20, 2008

sdm 

Scripts Do Matter

Look mom! No hands!

sdm by h3h3 September 4, 2003

sdm 

Sex with the network server.

He was so happy about the new server, he went SDM on it

sdm by Quab October 7, 2003