Is there some official body that I can submit my new word to and get it in Dictionaries?

Dictionaries record usage. They don’t take submissions. Use the word, write the word, get other people to use the word, and it will end up in the dictionary.

what @pdworkin said

Use it three times and it’s yours.

If you can get others to use it, 500,000,000 times, it may make it into the dictionaries.

(Coo cook a choo!)

excellent news!!! I’m on it!!!

for some reason though I can’t seem to make any plimples today… must try harder!

that’s two!!

lexibomb (lex-uh-bom): the inability or failure to get an original word accepted or published by either a printed or online dictionary.

@janbb: Gesundheit.

Lexicographer Erin McKean on how words get into dictionaries:
http://www.powells.com/blog/?p=969

thanks @morphail that’s great info xx

What @pdworkin said, as it applies to “real” (i.e., “legitimate”) dictionaries. However, you can submit entries to the Urban Dictionary. And that has a chance of actually popularizing your word someday—at least among perusers of the Urban Dictionary.