When your crazy, angry ex writes a nasty angry note on the back of a cereal packet and posts it through your door.
“Dude I’ve just been cornflaked by my ex.”
by BobMcBobbins May 10, 2018
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A source of contention between Norwegian black metal musicians. To declare your preference for "soft" or "soggy" cornflakes is to express a desire to branch out as a musician and explore the possibilities of artistic maturation. To steadfastly swear allegiance to crispy cornflakes is to commit to stabbing your musical rival in the head and committing arson.

The topic of cornflakes can also be usefully employed to deter metal guys from boring you with their inane banter.
How do you like your cornflakes?
by ʇʞǝظqo March 2, 2011
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someone who is consistantly unreliable and flaky.
constantly ditching, never good for their word
"Dude, Danielle is such a cornflake. Last week she bailed on plans that SHE made with us."
by ashlyn. September 13, 2008
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The title for the person you can count on to show up late or not at all, for an event to which they have committed.
Our friend Cornflake is late again. Hopefully the "Flake" will at least make an appearance. His new nickname is corn flake.
by NURTON January 13, 2017
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When person "A" scrapes their anal crust off and spoons it into person "B"'s mouth with their penis.

In this way, the penis becomes the spoon, the anal crust becomes the cornflakes and the mouth becomes the bowl.
I'ma cornflake you! Close your eye and open your mouth.

Oh, I'm gunna give him a cornflaking tonight!
by Dangen December 31, 2009
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Cornflake (n) : a Conservative that postures as crunchy and delicious, but becomes a soggy mess when immersed in reality.
My cornflake cousin that won't stop posting MAGA memes just flushed his razor blade while screeching like a pterodactyl.
by Doyu January 18, 2019
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The act of going up and catching passes over a defender in football.
We're gonna get some CORNFLAKES on you!!!
by Philip Rivers 17 December 16, 2009
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