lick someone's boots (or vulgar slang arse)
Be excessively obsequious towards someone.He accused him of ‘deliberately contributing to a great propaganda coup in which… the British Government are licking their boots’....- Suddenly the staff are licking our boots, plying us with free chocs and smiles.
- And who needs to worry about being called to account for your hypocritical lies, when you have such a gloriously supine media to lick your boots and shield your Royal Person.
See parent entry: lick