"Gambling Bar Room Blues" is a song written and performed by American singer-songwriter John Mellencamp. It tells a story of a man who finds himself caught in a cycle of alcoholism, gambling, and violent confrontations. The lyrics depict the protagonist's visit to a bar, where he encounters his girlfriend talking to his friend. This discovery leads to feelings of jealousy and anger. The protagonist continues to indulge in drinking and gambling throughout the night, escalating to a fight with his friend. In a fit of rage, he even uses a razor and a pistol, leading to tragic consequences. The song also highlights the strained relationship between the protagonist and his girlfriend. He informs her that he has to leave, potentially due to his destructive lifestyle. However, before he can depart, they meet at the bar, where it starts to rain and he realizes he needs to catch a midnight train. The song ends with the protagonist realizing the consequences of his actions, as he pawns his valuable possessions, including his watch, golden chain, and his girlfriend's diamond ring. "Gambling Bar Room Blues" reflects the dark and tumultuous side of human nature, exploring themes of addiction, jealousy, violence, and the consequences of one's actions. It serves as a cautionary tale about the destructive path that alcoholism, gambling, and impulsive behavior can lead one down.