Here's a song I wrote a while ago, that has a couple of double entendres in it:

ABSTRACT HORNY BLUES (1973)

standing on the porch at dawn
watching people's lights go on
wondering who's in bed there
thinking why in hell should i care
they can go blow a fuse
i've got those abstract horny blues

some people first thing in the day
look down their belly and pray
me when i go out to piss
i think what is all this
it's only meant to amuse
i've got those abstract horny blues

if i cared only for you
you'd be afraid i'd be true
but i don't care who you may be
so why should you care if it's me
i've got no self to abuse
i've got those abstract horny blues

i don't have the blues for fun
but when all is said and done
as long as you never go far
at least you know where you are
i've got a lot to lose
i've got those abstract horny blues