cheat on (someone)
To be unfaithful to one's romantic partner. Well, I heard that Jane cheated on Rob, and that's really why they're getting divorced. I'm not surprised she dumped you—you did cheat on her, Alex. My self-confidence took a major hit after my last boyfriend cheated on me.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.
cheat on someone
to commit adultery; to be unfaithful to one's spouse or lover. "Have you been cheating on me?" cried Mrs. Franklin. He was caught cheating on his wife.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
cheat on
Be sexually unfaithful to, as in They broke up right after she found he was cheating on her. [Colloquial; 1920s]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
cheat on
v.1. To behave fraudulently during some process or activity: The teacher caught the student cheating on the test.
2. To be unfaithful to someone, especially a spouse or lover: I hired a private detective to see if my spouse was cheating on me.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.