Heathrow Shuffle lyrics

(Van Morrison)

Ba-ba-doo-day, ba-ba-doo-day, ba-ba-doo-day
Ba-ba-doo-day, ba-ba-doo-day, ba-ba-doo-day
Ba-ba-doo-day, ba-ba-doo-day, ba-ba-doo-day
Heathrow shuffle, Heathrow shuffle, yeah
Ba-ba-doo-day
Heathrow shuffle, Heathrow shuffle, yeah
Ba-ba-doo-day
Gotta go to Heathrow, gotta go to Heathrow, yeah
Ba-ba-doo-day

Submitted by Guest

What do you think is the meaning of Heathrow Shuffle by Van Morrison?