Green with red

Quick answer：

The phrase 'green with red' can refer to various contexts. It might be used to describe a color combination or a state of excitement or illness. In color theory, green and red are complementary colors that, when combined, can create a variety of hues. In terms of emotions or physical states, 'green with red' can be an informal way to describe someone who is extremely excited or envious, or it can be a reference to a specific condition, such as green sickness, an old term for a type of anemia characterized by nausea, dizziness, and pallor.