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a half-assed job at estimating.
Because I'm not very smart, i just guesstimated instead of actually thinking about it and making an estimate.
by malcom jamal warner January 16, 2007
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Oct 27 Word of the Day
The time between Christโ€™s birth and the beginning of the coronavirus.
In late 2016 AD or 3 B.C.V., Donald Trump was elected as the 45th President of the United States of America.
by JDS12 March 27, 2020
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An educated guess. A guesstimation is a guess, but at the same time an estimation.
I guesstimated that 95% of people in Zimbabwe think this word is cool.
by drew s April 08, 2004
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1. Originally used by morons who like to make up words, guesstimate is a combination of two words that don't mean quite the same thing; A combination of the words Guess and Estimate that has adopted the meaning of the word guess.

2. To Guess; To draw a conclusion with little or no reason to believe so.
Bob: How high are we on this building?
Mark: I'd say about 10 stories.
Bob: That sounds like a good guesstimate.
Mark: (Silent in awe of Bobs stupidity)
by Coerce1 May 17, 2009
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a mix between guessing and estimating.

guess + estimate = guesstimate

its that simple.
me (looking at very confusing non-digital watch without any numbers): I guesstimate that it is about 3:06ish.
by isabelle.g.p33 May 23, 2011
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an aproximation; an annoying phrase likely originating from high school science teachers.
Don't know the answer? Make a guesstimate.
by vurp May 01, 2003
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The way stupid people say "estimate". They either think they're being cute or clever, or else that it's an actual word. Since it's not any of these, science has yet to offer an explanation for people who consider use of this word acceptable.
My college trig teacher asked us to "guesstimate" values. I wanted to punch her in the mouth.
by mamamooa October 18, 2005
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