PeepoKnife

What the picture shows

A cartoonish green hand wearing a blue sleeve grips a black-handled knife with a broad pale-grey blade, angled upward against a plain white background. Chatters likely use it to signal playful menace, a mock threat, or aggressive intent in a joking way.

No measured meaning yet. Used 21 times in 10 channels this month; one is written once chat gives enough evidence.