Does the "Party of No" stand FOR anything, or do they oppose nearly everything? Is "conservative" just another word for "No"?

They do stand for something.

And it usually involves profit margins.

anytime democrats are in control

Republicans are in favor of invading sovereign nations, increasing the burden of the middle class by giving tax cuts to the extremely wealthy, discriminating against homosexuals (while secretly being homosexual), prohibition, and torture.

Conservatives stand for conserving the old ways, viable or not in today's world, and saying "no" to new schools of thought.

We are for working long and hard, lifelong, creating ever greater opportunities for all in this land of opportunity. As it turns out the democrats are not so industrious and so they rely on politicians to do their bidding to spread the wealth around - hard earned wealth on the part of those who accrued it. We make no apologies for occasionally saying "no" to this ongoing extortion.
I hope you are enjoying the fruits of our labors.

Of course Republicans have core values. THey favor no taxes for the wealthiest among us, no regulations on business, no limits on corporate profits, no equality for anyone outside their select group...

Hey, wait a minute. Maybe they really are the "Party of No!"

They are the party of 'mean' to, in both senses. But listen to the whine now that no one cares what they say. The spin is ramped up to shrill.