grab a coffee, grab coffee
...Leave the room just for a moment--to grab coffee in the kitchen....

I think it should be grab a coffee.
Do you say grab coffee?

Grab a coffee
grab coffee
grab some coffee

Are they all acceptable?

Question

grab a coffee, grab coffee
...Leave the room just for a moment--to grab coffee in the kitchen....

I think it should be grab a coffee.
Do you say grab coffee?

Grab a coffee
grab coffee
grab some coffee

Are they all acceptable?

Answer

I’ve heard all three used.  All are acceptable in spoken English, in my opinion, and have no different meaning.

Answer

Thanks, Walu.

Answer

They are all acceptable. People often use the shortest version, especially in English. It's just easier to say, rolls of the tongue more easily, so to speak.