When someone, typically a Becky, tries to explain your culture to you.
Becky: I see what you're saying, but I don't think you really understand the Mexican culture that much. You see, Mexicans traditionallyâ
Juanita: Shut yo ass up Becky! Don't try to culture-splain wit yo jesus sandals wearing, "Can I get a Grande, Iced, Sugar-Free, Vanilla Latte With Soy Milk" looking ass!