This was sung by Pigpen in the early days and by Weir in the 1990s - in very similar versions. This is Pigpen's version from 16 March 1967, with notes on where the Bob Weir version differed.
(1) Weir sings "... that keep a tom cat out all night"
(2) Weir sings "What makes a man go crazy when his baby wears an evening gown"
What make a man go crazy when a woman wears her dress so tight?
What make a man go crazy when a woman wears her little old dress so tight?
You know it's that same thing that make a tom cat fight every night (note1)
And why all of these men trying to run a big legged woman down?
Now why all of these men trying to run a big old legged woman down?
It's got to be that same old thing that make a bulldog hug a hound
And it's that old same thing
It's that old same old thing
Now tell me who to blame?
The whole world's fighting about that old same thing
Yes it is
What make you feel so good when your baby get a dressing gown (note 2)
What make you feel so good when your baby get a dressing gown
It got to be the same old thing that makes a preacher lay his bible down
Yes it is
And it's that same thing
It's that old same thing
It's that old same thing
It's that old same thing
Yes it is