SDM is an acro for "size does matter"
"oh yes... SDM... that's why I dumped Fred."
spank da monkey!
also known as masturbating, or pleasuring oneself
ho...ho...hold on, let me sdm for a bit
Sex with the network server.
He was so happy about the new server, he went SDM on it
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”
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)!