Plot summary
Adam tries to go meet with his visiting brother Patrick ( Steven Weber ) without telling Bonnie, who eventually finds out and wonders why Adam does not want her along. After inviting herself and Christy to the dinner meeting, Bonnie learns that Adam and Patrick have been at odds for years over business and emotional issues. Complicating things, Christy later strikes up a conversation with Patrick and the two go on a date. Title meaning: Bonnie's nickname for Christy's choice of driving music and one of Bonnie's snarky suggestions for why Adam is embarrassed by his brother.
Credits
Adapted from Wikipedia contributors, Mom season 5. HTML formatting and reference markers removed.