This is a good example of what happens as a society slowly becomes illiterate. They can't even make t-shirt slogans that are clearly written.
I am assuming what the shirt is intended to mean is, "If you want to say no, do not feel you have to say maybe. You have the right to say no and be respected."
But that would be tl;dr for our dwindling linguistic attention spans. As is this post, no doubt.
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go go go
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