A misinterpretation of the word, yammering, but can be used in the same way. For example, if someone is speaking too foolishly, you could make them aware that they are yamalin.
Connor: "I love Dungeons and Dragons. It is a fantasy role-playing world of possibilities created by the player!"
Tyler: "Mate you're yamalin"
Tyler: "Mate you're yamalin"
by Tyler James Henderson June 17, 2025