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Upbit, a two syllable word for the five worded phrase, "Shut the fuck up bitch". It is commonly used online to fool people into not knowing the actual definition, appropriate uses for this word are to, your teacher, parents, police, any type of higher authority is perfect, because they dont know what it means!
Teacher: "For homewrok today, you will have to do..."
Student: "UPBIT!"
Class:"hahahahah", "Get Wrecked"!
by That LHS Narwhal November 07, 2010
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