What does grand bisou mean in English?

"Bisous" refers to those little kisses by each cheek that the French sometimes exchange upon greeting and departing. Written letters and emails often use "Bisous" as the complimentary close, or "Gros Bisous" meaning many of those little kisses by the cheeks. Even though the literal translation is "large kisses", gros bisous does not refer to open mouth sloppy wet kisses.