kiss off

slang

1. To go away; to get lost. Often used as an imperative. Mrs. Durst was so curmudgeonly that she was even known to tell carolers to kiss off. I'm tired of your constant complaining! Kiss off, will you?

2. To be forced to accept the loss or end or something. If you keep coming to practice late, you can kiss off your starting position.

3. To dismiss, reject, or abandon, often with contempt or without much tact or consideration. In this usage, a noun or pronoun is often used between "kiss" and "off." Whenever I go in there to shop, I feel like the snobby salesgirls just kiss me off and pay attention to the richer-looking customers.

4. To die. If they invent a hoverboard before I kiss off, I'm definitely going to try it, no matter how old I am.

5. To murder someone. In this usage, a noun or pronoun can be used between "kiss" and "off." Manny was an enforcer, which meant he kissed off anyone who posed a threat to the organization. Is he gonna stay quiet, or do we need to kiss him off?

kiss something off

tv. to forget about something; to ignore something. Just kiss off any idea you might have had about running for office.