The song "Stupid" by terastic is about calling out someone for their foolish and dumb behavior. The lyrics express frustration and disbelief at the person's actions, questioning why they are acting so stupid. Swagtastic and tera describe feeling high and carefree, unbothered by the opinions of others. The song also touches on themes of friendship and loyalty, with Swagtastic declaring that he will continue doing what makes him happy regardless of others' opinions. The overall vibe of the song is confident and unapologetic, with a catchy beat and playful lyrics. It is a fun and energetic track that encourages listeners to let go and embrace their own unique swagger.