Lyric discussion by Matty Dubs 

Cover art for The Placid Casual lyrics by Super Furry Animals

I've been listening to this song since '98 and I've never gotten around to figuring it out. A "casual" is sort of like the British version of a white trash soccer fan. Alls I can gather is that the song is about a, animal that wears jerseys while burglarizing appliance stores and maintaining a docile exterior.