Wiktionary
have a couple
vb. (context idiomatic English) To drink enough alcohol to be slightly drunk
Usage examples of "have a couple".
I do happen to have a couple of bottles of your old dad's whisky stowed away in back.
Suddenly she found herself wondering what it would do to you, inside, to have a couple of those little parts of yourself hacked off or torn off or whatever.
As it is, I have a couple of projects coming to a head, and I won't be out of the office much all week.
We still have a couple of small things together, but the contact on those is all through lawyers, and they're closing out a little at a time.