"Cucumber mixture" refers to a combination of different ingredients that include or are related to cucumbers. It can be a blend, mix, or recipe that includes cucumbers along with other elements to create a specific dish, drink, or skincare product.
Line salad bowl with lettuce and pour cucumber mixture over top - or if you'd rather be less formal, just roughly chop the lettuce and toss the whole thing together. (treehugger.com)
Fill each glass halfway with cucumber mixture and top with sparkling water or soda. (jovinacooksitalian.com)