[Literal Meaning]
Hongmen/a dinner party
a dinner party at Hongmen
[解释]
比喻借请客吃饭的机会达到某种特殊的目的。
[Explanation]
to have a special purpose when inviting someone to dinner
[例子]
你要请我吃饭,摆的不会是鸿门宴,实际上是要求我给你儿子找工作吧?
[Example]
You want to invite me to dinner. Is it a dinner party at Hongmen, in which you actually ask me to find a job for your son?