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why the fuck did you search cereal, like really cereal? you could have learned about disease or even about other peoples cultures and you could even learn sex ed taught through memes, but look at you looking up cereal on urban dictionary you are a mistake.
tom: hey i just searched up cereal on urban dictionary!

jerry: kill your self

tom: i am a weirdly violent cat

jerry: i am a small mouse
cereal by boy meets COW March 1, 2021
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1. another word for being serious.
2. that hella good food that comes in a box.
3. stamps for science class that you run off to fake that you did everything in class.
1. "Dude, I'm super cereal."
2. "What did you have for breakfast? Oh i had this one kickass cereal."
3. "Hey, did you bring my cereal?"
cereal by altecbags December 24, 2008
The word serious, shortned to cereal.
Dude, I saw Katie getting slammed by Dave in her back yard.

Dude, you cereal?
Cereal by Mattrgilberto February 3, 2008
A slang version of the word "serious," usually used to inflect idiocy or ditzy-ness.
Popularized by South Park's episode featuring Al Gore.
'Man-bear-pig is real, I am super, duper cereal!'
cereal by Stealth Walrus December 9, 2008
A codeword to talk about sex without saying the word when you're in a public area
I had the best cereal of my night last night
Another name for weed.(Relatively good at that)
"Hey John, got any cereal for this weekend?"
cereal by vvd May 17, 2008