smd means to send missile drones
"bro u see gharry he sent a smd to his opps house"
Smd means: Suck my dick.
its something people use when they mad or when you jus feel like it.
"Nigga why this shit gotta be so fucking annoying jus smd"
1. N.) Acronym for Surface-Mounted Dildo
2. N.) Acronym for Suck my Dick
1.
Guy: Yo you see that over there?
Friend: See what?
Guy: The SMD
2.
Guy: You should ask that girl out bro.
Guy2: SMD