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2.
The act of dressing and acting as the opposite gender; usually a hobby.

What I do in my spare time.
"I hope my mom doesn't find out about my cross-dressing. It would suck if she walked in and found me wearing my little brother's clothes."
by Pinnku November 22, 2009
 
1.
The act of one dressing up as the gender that they do not normally find themselves living as. This is done usually as a hobby, in order to live out fantasies, for drag shows/parties, or for sexual excitement. Oh and just to make it clear; TRANSSEXUALS DO NOT CROSS-DRESS, AND CROSS-DRESSERS AREN'T NECESSARILY LGBT!!!!!!
Cory: Hey Ari, just curious; between you and me, have you ever found your brother Josh cross-dressing? I mean he's so effeminate like I would bet 100 hundred dollars that he cross-dresses. I mean let's shake on it now.

Ari: (Takes hand)...that was a stupid bet Cory, guess what, she doesn't cross-dress.

Cory: SHE!!!!!

Ari: Yes, I'll apologize to her later for telling you that but Jessica, not Josh, is a transsexual who isn't out yet, and yes she wears woman's clothes all the time, but it isn't cross-dressing. For the last 3 months she's refused to wear boxers, Vicky's Secret Panties only.

Cory: That's cross-dressing you cheapscape!!!!

Ari: According to Urbandictionary it's not.

Cory: Fack!!!!!
by גסיקה January 05, 2009
 
3.
When a homosapien with the sex chromosomes XY dress in Japaneses schoolgirl clothes, usually taking on a persona much more preferable to his normal one.
Shumbody is the crossdressing queen.
by Asian group December 12, 2007