Tit Monday is that special day in the year when, for the first time, the temperature rises above that magical point which causes girls getting dressed in the morning to decide to show a bit of skin.
"I was feeling a lot chirpier than usual this Monday morning. Probably because it was 'Tit Monday'."
by RAW84 April 3, 2006
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The first truly warm day of spring on which women often get over-eager about not wearing clothes.

N.B. Tit Monday does not necessarily always fall on a Monday
After weeks of 30 - 40 degree weather, this Friday will will have a high of 65, making it Tit Monday.
by smaker April 13, 2018
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On a monday ask a female to pop a tit on ft or messages
Let’s see a tit today for pop a tit Monday
by Yeskizzi March 22, 2022
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As there is a slap ass Friday, there is now a tap tit Monday all you do is tap their tit (if they are a girl)
“Hey Sarah!” *taps tit*

“Ow what was that for?!”
“It’s tap tit Monday!”
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