What does Brunswick 69 Brunswick 69 mean?

Brunswick 69 Brunswick 69 meaning in Urban Dictionary

The ever more popular act of performing a Cleveland Steamer whilst in '69' sexual position.This work keeps growing with appeal within couples aged 20-35 years of age. The Brunswick 69 is a 1920's period manoeuvre which contains a cleveland steamer, performed upside down with a reverse blumpkin. Gravity causes the blumpker on the be-seated jobee and enables a wiggling motion to generate the steamer, left to correct like poo on a windscreen wiper.