1. The acronym for the 7 days in a week
2. Your typical dialogue between someone who stepped on someone's toa and someone's who's toa got stepped on

"MY TOE WHAT THE FUCK" "SO SORRY"
You're at a movie theatre, someone's trying to go by a bunch of people to his seat. You hear "MTWTFSS", you know what went down.
by HitlerOfGrammar March 18, 2018
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M onday
T uesday
W ednesday
T hursday
F riday
S aturday
S unday
by Gn Leumassy February 15, 2022
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Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
the days of the week is mtwtfss
by pessimist by the optimist December 6, 2009
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