derived from the word Retard and put in spic form. Can only be used by cool kids such as N&S. If you are called retardos, it usually means that you are homosexual and stupid and you deserve an ass fuck from a leprechaun, a cleveland steamer from a cross dressing whore(a man), and/or an arabian sandstorm from jonny boy crandall. These services will be forcefully practiced on you and ewill result in a form of xenophobic witchcraft bondage. Leprechauns will make deals with you and you're advised not to agree.
Either an error at the end of an email, instead of 'Kind regards' or, as its preferred option, to put a not so subtle dig across to the idiot you are currentlydealing with.
Regardless of the above, we will not be requiring your service any more.