Work with my boss

I went for drinks after work with my boss After a few beers we were feeling pretty good.

I asked how do I get ahead? It must be effortless for you. He said, yeah it’s easy for me.

I just ask my secretary whenever I want it.

I looked confused and asked what he meant?

He said ohhhh wait.. You asked how do you get “a” head?

What would it take to keep what I said between us?