Quagmire [talking]: Ensign Glen Quagmire. Welcome aboard. 

You picked a great day to get rescued.

We were just about to sing a song about mopping.

Quagmire's sea crew [singing in opera type tune]:

We're mopping the deck

which is Navy for "floor"

And when we're done mopping

We'll mop it some more.

Quagmire [in his custom voice] Oh!

[Singing again]: Swab means mop, deck means floor.

[End, interrupted by death's mum but there is no singing in the backgorund, only music]