“Baggy Trousers” is a song by English ska/pop band Madness from their 1980 album Absolutely. Colgate used a slightly different version of the song with different lyrics to sell their Blue Minty Gel toothpaste and Colgate Pump container for a television advertisement.
Toothpaste is not intended to be swallowed.
Madness are a British pop/ska band from Camden Town, London, that formed in 1976.
Colgate, an oral hygiene product line and one of the namesake brands of the Colgate-Palmolive Company, is a manufacturer of a wide range of toothpastes, toothbrushes, and mouthwashes.