1) An inquisitive remark; a way of asking "are you for certain that what you are expressing right now is something that can be trusted?"
2) A confirmation of seriousness.
3) A deep and philosophical question, as in: "Are you sure that you are not dicking around right now?"
4) An exclamation.
1) Are you for cereal?
2) For cereal.
3) SUPER cereal?
4) Cereal!
by Blue Goose March 26, 2008
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A statement used that questions the validity of a statement. Similar to the phrase "are you for real?"
Ellen: Oh my goodness, today my father purchased a new ride for me! A 2005 Benz!

Janet: For cereal!?!?!
by Molly May 7, 2005
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JaJa: Xbox 360s went on a recall because Mexicans made it.
GenGen: Lolz... for cereal?
JaJa: yah
GenGen: pwned
by Rodolfo S.J, October 17, 2006
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A very stupid way of saying "for real".

People who find this annoying phrase funny, or worse, actually use it in conversation, whether real or online, are complete and total retards.

It should also be noted that there is a positive correlation between how much you use this phrase and just how big of a retard you really are.

Person 1: "Hey, my grandma is a leprechaun!"
Person 2: "For cereal?"
Person 1: "No, yours is you retard."
by Johnny Mark McGroom February 16, 2009
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1) An inquisitive remark; a way of asking "are you for certain that what you are expressing right now is something that can be trusted?"
2) A confirmation of seriousness.
3) A deep and philosophical question, as in: "Are you sure that you are not f*cking around right now?"
4) An exclamation.
1) Are you for cereal?
2) For cereal.
3) SUPER cereal?
4) Cereal!
by Blue Goose March 26, 2008
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honestly; seriously. Derives from and sounds like the phrase "for serious?" Variation on "for real?"
synonym: "fo sho"
Person 1: I heard so-and-so is getting fired.
Person 2: for real?
Person 1: for CEreal.
Person 2: wow...that's some harsh stuff.
by nipopo91 June 8, 2009
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Past tense verb for when a guy tries and fails to get with a girl dressed as a cereal box
by Nrhehdjsnej April 10, 2023
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