A 'cocktail hour' [=an hour when people drink cocktails] preceded the dinner.
The disease is being treated with a 'cocktail of' powerful drugs.
a dangerous 'cocktail of' chemicals
(..) he knew about shrimping, but you know what I found out? Shrimping is tough. I only caught five. A couple more, you can have yourself a cocktail. You ever think about naming this old boat? It's bad luck to have a boat without a name. I'd never named a boat before, (..)1994 Forrest Gump