The phrase "kiss upped" is often used as slang for someone who is overly flattering or trying to gain favor by insincere means. Some synonyms for this term include sucking up, brown-nosing, groveling, pandering, flattery, ass-kissing, buttering up, and ingratiating. These terms all describe a person who is attempting to win someone's favor by being excessively complimentary or subservient. It can be seen as insincere or even manipulative behavior, as the person is not genuinely interested in building a relationship, but rather using flattery as a means to an end. These synonyms highlight the negative connotations associated with "kiss upped" behavior.