A LezMarine is a just exactly what it sounds like: a submarine with homosexual women (or 'lesbians') on board. It's a pretty obscure reference, but I have heard it said before. I was informed that this word is from a 1969 pornographic spin-off of the Beatles' "Yellow Submarine" animated film. What made this particular porno reference able is that it was sued by Al Brodax and The Beatles for featuring the Beatles SoundTrack Album for Yellow Submarine without proper legal authurization from Polydor Records.
"We all live in a yellow LezMarine, not a Submarine!"
"Well comerre' an' show you a REAL submarine..."
"OHHHHHH!! SERGEANT PEPPER!!!!"
an underwater boat full of gay womans
-"we all live in a yellow lez-marine..."-