Happiness is a Warm...huh?!?

Ceci, Rita, Rick and I were sitting around Sunday night/Monday morning at 3:00 am or so singing Beatles songs, and when we finished "Happiness is a Warm Gun," Rick pointed out the absolute strangeness of the lyrics in the bridge.

"She's well acquainted with the touch of the velvet hand like a lizard on a windowpane
The man in the crowd with the multicolored mirrors on his hobnail boots
Lying with his eyes while his hands are busy working overtime
A soap impression of his wife which he ate and donated to the National Trust."

A soap...huh? He ate what? He did what? Where?

Leaving aside lizards, boots, and hands working overtime, let's just concentrate on that last line, shall we? Why not parse that last line out, because it demands further study.

Several assumptions must be made in order to fully understand this line.

1. A man owned a soap impression of his wife.

2. The man ate said soap impression.

3. The man eventually divested himself of this digested soap impression, either through defecation or vomiting.

4. The man donated said fecal or emetic material, containing the previously mentioned artisinal soap product, to the National Trust.

5. The National Trust has a policy of accepting donations of human fecal or emetic material, at least if such material contains soap products previously used in artistic impressions of the donor's spouse.

Now isn't that much clearer?