They don't make a lot of sense, but "mwahahaha" and "ridic" are among the newest words to make it into Oxford Dictionaries Online, which is the Internet-based sibling to the Oxford English Dictionary.
Mwahahaha traces its lineage back to the 1920s and is the laugh of an evil henchman.
Other words and phrases included are Lolz, dogfooding, inboxing, UX, UI and NFC.
Read more: Mashable.com
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