SD

Secure Digital, probably the best solid-state memory cards money can buy, Faster and safer than XD, CF, Super CF, and MMC

I bought a 64 MB SD card for my Digi-Cam.........Dude excellent choice!

by Nik Canning August 18, 2003

SD

Stands for Sucking D*ck

"I was SD last night."

by Marisol.R April 09, 2017

Sd

Sd-sick dick

Wow she sd

by Better ybgcti vxzi May 18, 2018

sd

Internet abbreviation for 'send' (usually used for emails and ocassionally PMs).

A: ill sd u dat super awesome game if you sd me that super awesome movie
B: u mean that afv submission dat never got sded?

by JQPublic January 23, 2012

SD

Swear Down

SD don’t need them

by Thomo69 July 09, 2020

SD

Sweet Dream

Good Night! SD!

by Xeruss April 20, 2016

SD

Also Known As A "Smooth Dip" - to dip off in a smooth fashion as to avoid someone.

You im bout to SD on these muthafuckas

by Dave609 April 21, 2008