PLUH

What the picture shows

A blue silhouette of a head in profile with an open mouth and three action lines pointing toward a large orange-and-yellow flame on the right, rendered in a flat emoji-like style. Chatters likely use it to express spitting fire, roasting someone, or delivering an especially heated take.

No measured meaning yet. Used 5 times in 4 channels this month; one is written once chat gives enough evidence.