Standard (EADGBE)

Just when sin is quite the thing, there's one

 who holds quite tight to what had worked before

What's his outlet, what's his secret,

 is it something one can buy at some drug store?

Could the gospel be his girl,

 Does he exercise by breaking 2 by 4's?

 Just what is his game?

 Could he be enticed?

 No one's quite lame

No one's quite nice

No more Mr. Nice Guys

 Few are left but him

No more Mr. Nice Guys

The Nice Guys cannot and the Nice Guys

 shall not, the Nice Guys will not win

She expressed a strong desire in relieving him of his anxiety

She succeeded very well for now she's mother to a nice family

If you had to call a winner you would call it her,

though she might disagree

He could be enticed

His game had to end

But he's still quite nice

She sees other men than him

No more Mr. Nice Guys

Nice guys won't suffice

No more Mr. Nice Guys

The Nice Guys cannot and the Nice Guys

Shall not, the Nice Guys won't suffice