A portmanteau of the Nintendo portable systems of the DSi and 3DS. Most commonly used for 3DS/DSi formatted sites (most popular: 3DS/DSiPaint).
(scrolls down page of 3dsifacebook.com(real 3ds page. Look it up.)on his 3DS)
Danny (calls Barry): Hey, yo, man.
Barry(swipes thumb down on his phone on Real Facebook, looking at his profile): What the hell is it, bro?
Danny: You should try 3dsi
facebook.com on your 3ds browser.
Barry: Why in the fuck would I go there if the real Facebook is better?
Danny: Ah, fuck you anyway. You're scared...
Barry: All right, fine, Goddamn! (logs out of Facebook profile and types in search '3dsifacebook.com')
There. I'm done. You happy now, bitch?
Danny: More happier than a bitch should be.
(the friends are both socializing on 3DSi
facebook throughout the afternoon)