FeelsSpiderMan

What the picture shows

A crude pixel-art drawing of a red masked superhero head with black webbing lines, large white angular eyes, and a wide flat mouth, rendered in a low-resolution MS Paint style. Chatters likely use it to express a smug, knowing, or deadpan reaction, often when something is obvious or mildly amusing.

No measured meaning yet. Used 4 times in 2 channels this month; one is written once chat gives enough evidence.