What does "lizard brain" and "put out bad vibes" mean?
Native speaker’s answer
Rebecca
"Lizard brain" is the most primitive part of brain where thoughts are controlled only by one's instinct. This part of the brain controls fear and anger. "Giving out bad vibes" means to make a negative mood in the surrounding, usually with emotions of fear, sadness, or anger. In this video, the guy is worried that his emotion with fear made the situation worse.