4Head is a Twitch emote featuring a close-up, smiling face. It is most commonly used to indicate laughter, amusement, or to mock a joke that is considered unfunny or forced. The emote is often spammed in chat when something silly or awkward happens, or when a streamer makes a joke that viewers find cheesy.
Origin
The 4Head emote is based on the face of Cadburry, a Twitch streamer whose real name is Kurtis Ling. The emote was uploaded to Twitch in 2015 and quickly became popular due to its expressive, exaggerated smile. The name "4Head" is a playful jab at the size of the forehead in the image, which is accentuated by the close-up crop.
When to use
When a streamer tells a joke that falls flat or is considered corny.
To mock or playfully tease someone for making a bad pun or awkward comment.
As a general reaction to anything funny, silly, or awkward happening on stream.