A "pourable sauce" is a sauce that has a consistency or texture that allows it to be easily poured or drizzled onto food without being too thick or clumpy. Full definition
Add more vegetable broth / water if needed to achieve the consistency of thick but pourable sauce / queso. (golubkakitchen.com)
These are ready to go, pourable sauces you can add to sautéed vegetables, whole grains or legumes right in the skillet for flavorful, super easy, and quick dinners. (thewimpyvegetarian.com)
I use less for dips and more for pourable sauce. (mccormick.com)