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internet slang, short for "you cannot be serious"

used as an excited utterance when the poster simply cannot believe what was posted inthe thread.
OMG, u canot b serios, that would ruin all humanity!!! WTF???
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Sep 9 Word of the Day
the thing that you don’t have when you’re phones percentage is over 20
phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz
by lik_frls_dis.me February 12, 2020
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