Lyric discussion by SamanthaSecretAgent 

[sorry if the use of "stanzas" doesn't line up, i was looking at other lyrics when i wrote this]

Main Theme: This song details the feelings of Euphoria, Carnal Pleasure, Bliss, and Transcendence that a man feels while receiving fellatio from his wife.

First Stanza: Death in a "shark's mouth" is referring to having an orgasm during fellatio from a woman. The "shark" is the woman, due to the general theme of the deceit and treachery of women throughout the album. And using the shark is just to go along with the "sea" metaphor, choosing the deadliest, most cunning, most sleek creature in the sea.

He even gives shark qualities to the woman, "swimming under", to re-enforce the metaphor. The last two lines are the most literal description in the song of the actual act being performed. Thunder is, by common knowledge/explanation, the sonic emittance which occurs after the rapid expansion of air molecules surrounding a lightning strike, due to the intense heat produce by the lightning strike. This idea gives recognition to said line by seeing the warm breath producing almost an explosion, the orgasm. "Parts South" are quite obviously the man's genitals.

Second Stanza: Death is another reference to an orgasm, the most obvious link would be in the french idiomatic translation of orgasm: Le Petit Mort. The Little Death.

The Second Stanza details the event in how everything about the two people, the love, their life, their duties are put aside as a carnal pleasure is experienced in full.

Mind could mean mind or it could be a reference to brain and again another reference to fellatio or the male genitalia.

The Sea is again a higher plane where one is taken during such a euphoria so you will not find him, until he is going to come back down and also because it is an unreachable place except on your own.

This stanza helps if you take the last three lines and read them as one sentence and then put a comma between 'party' and 'as'.

The next stanza is pretty straightforward in this context. Round and Firm and Funny are describing his general feeling after the act has been finished, and he is still round and firm, and feels kind of funny from all the endorphins.

The Next 3 Stanzas are the Chorus, already touched upon, and then a straightforward reference to the orgasm, in 'drowning'. And then there is the common saying that Ignorance is Bliss, so in this sense knowing nothing is a feeling of bliss, the orgasm.

Life and Thought are possibly a reference to the sperm which carries the genes and potential for life, which are basically wasted in a carnal act meant only for pleasure. The finest love is his wife, and the finest taste is his reciprocation of the act by performing cunnilingus.

And the end, they both finished and are happy.

All in all, the sweetest, smoothest, most mellow, and dirtiest song ever.

All hail bonnie 'prince' billy.

An error occured.