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

"I was SD last night."

by Marisol.R April 9, 2017

Sd

Sd-sick dick

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

by Xeruss April 20, 2016

by Thomo69 July 9, 2020

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