Definitions by Someone...Someone.

SDTS 

#SDTS
Shut down, talk sh*t.

This can be done over messaging, or in person.
It's when a guy tries talking to a girl, gets shut down, so he talks sh*t about her.

Random guy: "Hey babe"
Girl: "......ummmmm.....who tf are you?"
Random guy: "B*tch you asshole who TF are YOU?!"
Girl: "I don't even know you???! Don't act like you know me. Dang, #SDTS."

SDTS by Someone...Someone. June 10, 2014

ratchet 

An out of control ghetto person.

"Daaaamn, did you see those cheerleading RATCHETS? LOL."

ratchet by Someone...Someone. November 19, 2011

SIG 

1) Abbreviation for "signature"
2) Suck It Good (Almost like SMD)

SMD and SIG!
OMG! He did NOT just say that.

SIG by Someone...Someone. December 18, 2010