Definition from Wiktionary, the free dictionary
- (transitive, idiomatic) To flatter, especially with the intent of personal gain.
- He takes every opportunity to butter up the boss.
- 2013, Daniel Taylor, Danny Welbeck leads England's rout of Moldova but hit by Ukraine ban (in The Guardian, 6 September 2013)
- Joe Hart finished the night without a single grass stain on his kit and it was just a surprise the team did not butter up their goal difference even more once Welbeck had clipped in Lambert's through-ball five minutes into the second half.