Digging deep into the fraternity depths, I've come up
with:

M is for the many times you made me;
O is for the other times you tried.
T is for those tourist cabiin parties,
H is for the hell we raised inside.
E is for the ease with which you had me
R is for the Wreck (sic) you made of me...

put them all together, they spell MOTHER
And a mother, brother, is what you've made of me

Now, for extra credit, does anyone remember the
sequel? It started F is for your foolish little letter,
and spelled out FATHER.