A serving to each of a group (usually alcoholic)(noun)
WordNet. Princeton University. 2010.
Use "round of drinks" in a sentence
"Friendly Norm ate it up, vicarious kicks on a platter; he called for a second round of drinks and asked questions about the garment district wars, the Robeson League, stuff Jukey had told him about."
"She ordered a round of drinks and the talk turned on the Colwyn-Welch plans for the immediate future."