Top definition
to leave the place that you've sat on

The action of lying down and situp to make your stomach muscles tougher
when there's an old person on the buss or train , you should situp and let her sit .

If you wanna make you stomach muscles tougher , you've to situp hardly .
by seven.56789 July 20, 2010
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Apr 21 Word of the Day
I've been jabbed
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2
To sit with a fixed, upright posture.
Please sit up during classβ€”stop slouching at your desk like that
by Hakanson February 14, 2021
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