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To settle a matter, to render it certain and free of doubt.
Person A: I ascertain that yo' momma so fat, she said the ABCs and caused the Great Vowel Shift.

Person B: Wow, certainly and without a doubt that my momma is very fat. Quite the bold Ascertainment.
by Marioni Stonioni December 03, 2018
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Aug 4 Word of the Day
Lying flat refers to a defeatist lifestyle in Chin, where people stop working, desiring material acquisition, and tap out of any social life ā€“ sometimes for good. By lying flat, young people are participating in a kind of non-cooperation movement, rather than surrendering themselves to China's oppressive work culture where they see little hope of social mobility.
Iā€™m not going to try to get a better job so I can afford to start a family, Iā€™m just lying flat.
by Freeo11 June 04, 2021
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