presume on (someone or something)(redirected from presuming on)
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presume on (someone or something)
To take advantage of someone or something in a presumptuous, unwarranted, or unwelcome manner. I always try to give my students the benefit of the doubt, but those who would presume on my leniency will find themselves facing harsh punishments. I'm your brother, Tim, I want to help you—just don't presume on me, that's all. Thank you for your offer, but I wouldn't want to presume on your hospitality.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
presume (up)on someone or something
to take unwelcome advantage of someone or something. I didn't mean to seem to presume upon you. I apologize. I did not feel that you presumed on me.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.