A sarcastic way to say "fuck you". Mostly used on chat services such as IRC and other sites that have chats. It's not meant to be taken seriously, so keep this in mind.
An informal way to say "goodbye and good luck with whatever you're trying to accomplish" when you're so flabbergasted by an individual's or group's words or actions that you only have 4 letters in you. Not at all related to profanity or the work "fuck"
Can typically start any internet rebuttal (There are exceptions, usually based on common sense) and sometimes ends with 'Also, Penis.' for an attempted humorous twist.
InternetGuy1: hay ufaggt internatsdood23: fuk u.
internatsdood23: Also, Penis.
