I came across two interesting extra verses. I thought they were pretty funny to sing... especially in public. These are sung in the same way we sing the toast song
Back your girl into a corner,
Turn the lights down low.
Place one hand upon her bosom,
The other down below.
When she starts to shake and shiver,
Tell her so she'll know--
That's the secret handshake of
The men of A-Phi-O.
And for the ladies...
Lead your guy on to the dance floor
Press your bodies tight
Tell him what he wants to hear
That he'll get some tonight
Let him walk you to your doorstep
Let him think you're cheap
Then send him home in agony
Where he can BEAT HIS MEAT
I got it from the Epsilon Lambda site
http://www.martinek.us/humor/songs.html