👉 The term "rosy base" is a phrase commonly used to describe something that feels too nice-guy friendly for its own good, or seems very light-hearted and innocent. It's often described as someone who appears so nice, they're actually quite heartless.
An example of a sentence using "rosy base" might be: "She was feeling like she had a rose in her pocket — but that wasn't the case." In this situation, it implies that the person being referred to is very kind and friendly, yet secretly harbors grudges or is not genuinely good-hearted.