The definition of chat or to be chatting would be 1. To be talking out the side of your neck 2. Pretending, or fronting 3. To be a chatterbox, one who talks a lot. This word is commonly found in New York.

when you're hungover as shit after a spending a night drunk as a skunk

Chatting...when one is running their gums, talking almost complete nonsense, but all other gangstas are like 'yeah brud, i get you. skeen, skeen.'

chatting is different than talking, chatting is the act of talking, in a nonsensical and unnecessary way, almost rambling on and just filling the conversation with your voice unnecessarily.

When someone's talking shit, lying or just waffling uno

Chatting is a Better TTV emote and a 7tv emote that members of a streamer’s chat, and sometimes the streamer, will use when they are try ping something really long and complex, or maybe something intentionally stupid, or even just on it’s own. The first option is similar to WideHardo, while the second option is more similar to PepoG. This emote is pretty universal, and you really can’t use it incorrectly. It depicts a yellow peanut M and M typing on a keyboard.