kiss ass

• (UK) kiss arse
• kiss someone's ass, kiss someone's arse

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kiss ass (third-person singular simple present kisses ass, present participle kissing ass, simple past and past participle kissed ass)

1. (US, idiomatic, sometimes vulgar, colloquial) to flatter or perform favors excessively, especially to receive preferential treatment from a boss or other superior; to behave obsequiously.

• kiss up, kiss up to
• lick someone's ass, lick someone's balls, lick someone's boots
• suck up, suck up to, suck someone's cock