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MIL = Mother-In-Law.

A Sugar MIL is an affluent mother of someone who married a gold digger. They try to buy the love of their spongey offspring and children-in-law, which in turn actually creates conditional love and higher expectations for money from the Sugar MIL.
β€œHow on earth are they going to afford to finish the renovations before the baby arrives?”

β€œThey’ll be fine, Jane’s Sugar MIL will pay for it - she’s paid for everything else.”
by soapboxqueen December 26, 2015
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