Lick (someone's) ass American rude slang
To insincerely praise or act obsequiously towards someone, especially who is rich or powerful, to get that person to like or support you.
He licked the boss's ass with the hope of getting promoted.
I feel like this salesman is just licking my ass, trying to persuade me into buying his product.
You won't get ahead by licking the boss's ass like that. She detests bootlickers.
To fawn over or flatter someone, especially someone in greater authority.
1. To flirt with someone through romantic gestures
2. To seek one's attention or favor through promises, entreaties
To pay a lot of compliments insincerely or flatter some to gain some positive response
Used to indicate a flatterer or a sycophant.
To praise or say pleasant things to someone to gain or ask for a favor.
The verb "lick" must be conjugated according to its tense.
The origin of this slang is not clear.