Captain Beefheart - Harry Irene lyrics

Harry Irene were a couple that lived in the green Harry Irene were a couple that ran a canteen Ran a canteen Ran a canteen Two people Harry and Irene like you never seen The floor was made of oak, the door was smokey gray Their tuna sandwiches would turn the dark into day They sold wine like turpentine to painters They took to social life like props to aviators Harry Irene were a couple that ran a canteen Harry Irene were a couple that lived in the green Ran a canteen Ran a canteen took Harry for all of his green and Irene Harry was left holding an empty canteen And by the way folks, it was Dusty not Harry What does this mean? What does this mean? What's the meaning of this? Poor Harry, I guess