The "What Thick What Paints" idiom is a metaphorical expression used to describe someone who is overly expressive or dramatic in their speech or actions. It implies that the person is "painting" a situation with an excessive amount of detail or emotion, much like a painter would use thick strokes of paint to create a vivid image. This idiom is often used to critique someone who is overly dramatic or who exaggerates the truth.

The idiom "What Thick What Paints" is rooted in the concept of visual art, where thick layers of paint are used to create bold and striking images. When applied to communication, it suggests that the speaker is using a similar approach, adding unnecessary detail or intensity to convey their message. This can be seen as a way to emphasize a point or to make an impression, but it can also come across as insincere or excessive.

Data from various studies on communication styles and nonverbal cues support the use of this idiom. For instance, research by the American Psychological Association (APA) indicates that excessive use of gestures and facial expressions can be perceived as untrustworthy or insincere. Similarly, a study published in the Journal of Nonverbal Behavior found that individuals who use more expressive language are often perceived as more emotional and less rational. These findings suggest that the "What Thick What Paints" idiom accurately captures the potential negative consequences of over-expressiveness in communication.