Full List of Facebook Chat Emoticons
This has been always a question of confusion as Facebook has not officially revealed what all emoticons and smileys they allow in their chat feature. Here I am with a full list of Facebook chat emoticons and smileys you can use during your Facebook chat conversation. I have also added some of the Facebook chat emoticons that works only for the Facebook employees! Enjoy 
and wait, do let me know if I miss out on any of the smiley which you know but haven’ been listed on this list. That will help this list grow better.
I’m not sure how technical you are, but if you search Facebook’s JavaScript for a known emoticon, you’ll come across the list in the Emote object. you can then un-escape and execute that bit of JavaScript, and output it however you want. here’s a list i just output:
There are also a few that only work for Facebook employees for fun.
:bieber: which is an alias for :putnam:
:mj: a little picture of Michael Jackson
:woowoo: an animated GIF of Bubb Rubb
((<< T-Rex from Dinosaur Comics
>>)) Utahraptor
Well, I know even after making that long list, I’ve still omitted many. That’s a second thing but my question is, do you know any other smileys which I don’t know yet?
About the Author: Rahul Banker
A 23 year old Blogger, Entrepreneur, Speaker from India. A complete geek, sports and music lover who always look to try new things. Catch me on Facebook, Twitter or on Google.
Yea, :42: = Displays the number 42. Don't know its actual use, but still great!!
same for me
don't know what does that mean but its cool 
Nice List, Most of them are new for me
this is a quite big list.. I didn't even know that there are these many emoticons available for FB chat..
same was the case for me until I started searching for it
I saw some of these being used in Status updates too where they don't render. Now, I know the meaning of most of them.
(y)
try it and comment!!!
YA GOOD COLLECTION OF SMILEY AND DON'T KNOW ABOUT MANY OF THEM
Very nice list, :mj: is not working, why?
put these into chat
[[249199828481201]] – Konata Izumi
[[250128751720149]] – Domo Kun
[[223328504409723]] – Gintoki Sakata
[[236147243124900]] – Pokeball
[[326134990738733]] – Pikachu
[[155393057897143]] – Doraemon
[[224502284290679]] – Nobita
[[144685078974802]] – Mojacko
[[334954663181745]] – Spongebob
[[196431117116365]] – Shin chan
[[148935948523684]] – Pedo Bear
[[ForeverAloneComics]] ForeverAlone
[[MeGustaMeme]] Megusta
[[164413893600463]] Megusta 2
[[149333368464171]] YaoMing
[[116616581692281]] TROLL Face
[[145768898802324]] FUUUUUs
[[168456309878025]] LOL
[[189637151067601]] LOL 2
[[FapFapFap.B]] FAPFAP
[[106043532814443]] Y U NO
[[214457085240151]] Nothing to do here
[[129627277060203]] Poker faces
[[ChallengeAcceptado]] Challenge accepted
[[100002752520227]] Okay
[[224812970902314]] Derp
[[192644604154319]] derpina
[[170815706323196]] Cereal guy
Thank you very much for the additional list
Now we can also use DP of any user or page in fb chat, just replace profileID with his/her ID. [[proileID]]