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1. Molyneux
To not deliver to previous promises made regarding the development of something.

To not meet high expectations set by the person (the Molyneux).
The developers of that game really pulled a Molyneux this time.

It looked so good - it turned out to be nothing more than Molyneux.
2. Molyneux
A Molyneux is a unit of measurement of skepticism and general unimpressedness
That movie review was at least 5 Molyneuxs.
3. Molyneux
One who is of the extreme gay variety, can also be described as a "fairy" or "drug addict", one to be avoided in the corridor otherwise you will be forced into conversations about such things as dildos, or rhosneigr
"can you see that gay face over there?"

"yeah hes a right molyneux"
4. Molyneux
One who is beastly / pro.
'Phwoar, he's a molyneux'.
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