A slang term used in the prostitution trade to describe a transsexual or transvestite hooker (who are often called "Transformers"), especially one who is so convincing as a woman that friends and clients do not believe she was once a man.
by HMB April 29, 2005
when your having sex with a woman in doggy and she says she doesn't want it up the butt so you put it in her pussy and then quickly put it in her butt. then you say you got "DECEPTICONED"
by mongaloid aka kumar August 07, 2010
An emoticon used to alter the emotional content of a message so that it appears to have a different meaning than the sender's actual intentions.
Often, a decepticon is used to "soften the blow" of bad news or to veil a threat.
IM Conversation:
Boss: "If you don't work harder, there might have to be another round of layoffs :)"
Employee: "Were you really smiling when you typed that, or was that smiley a decepticon?"
by inspired_tmu September 30, 2011
You know when you see a girl from a distance and she looks pretty hot, but the ugly factor increases the closer you get.
(from a distance...)
Friend 1: Dude! Check her out!
Friend 2: Yeah, not bad!
(the closer they get...)
Friend 1: Yo dude, my bad!
Friend 2: No prob, she's a decepticon!
by Scott January 15, 2004
sexual position
when two girls scissor on top of your penis.
if the aforementioned women are giving blowjobs to two other men. the decepticon has turned into a megatron.
by ProperHardcore September 17, 2009
by CS January 10, 2004
by JSP March 19, 2005