The technology equivalent of "talking down." The only difference is that it comes by way of a text message. In other words, it is a text that someone may send, only they are speaking negatively to the person as though they are not as good as them.

MAN 1 TEXTS: " You are an idiot! Why don't you understand?"
MAN 2 TEXTS BACK "Hey! Don't you dare text down to me!"
MAN 1 TEXTS: "Right. Sorry dude."
by laxislife19 January 02, 2009
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Commonly known as TDS, is a term used when you accidentally send a text to a different person who you are having a separate conversation with that is completely irrelevant
(Bill to Amy) "I cant wait to see you again baby!"

(Amy to Bill) "I know, you made me feel so amazing..."

(Bill to JASON) " You were my first you know...."

(Jason to Bill) "What the hell are you talking about???"

(Bill to Jason) "SH*T... sorry Jason. Must be my Texting Down Syndrome again."
by BAwrestler12 July 01, 2011
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A stupid way that attention-whores get people to notice their Facebook status. ˙looɔ os ɯı ˙ǝɯ ʇɐ ʞool
Jonny wanted people to notice him on Facebook. So he googled "Upside Down Text" and flipped his Facebook status upside down. Now everyone thinks he's stupid for being such an attention-whore.
by UpsideDownText.com November 07, 2010
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