Simple past tense and past participle of max.(verb)
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Use "maxed" in a sentence
"In this scenerio, I am basically bankrupt, my credit cards are maxed from the last few years of spending on health insurance, and I cannot get a loan, I’m upside down in my house and car, my two largest assets."
""I would do more," she says, "but my husband is kind of maxed out at his tolerance for hanging decorations.""
"More speed isn't an option at the moment as we're kind of maxed out on monthly communication expenses."