Well, don't keep it a secret. Please, give us your definition of Socialism.
He won't. He just want's to say everyone else is wrong (an argument of the Stone, a fallacy).
There are two major economic systems; capitalism, and socialism.
Capitalism is the voluntary production of products and services that are volunarily sold at the price agreed upon between the buyer (customer) and seller (producer). It is the only economic system that creates wealth. Anyone can play. All you need is innovation and/or drive. It is the only system that can bring people out of poverty (reduce poverty). This is the system that conservatives want. It requires no government to manage it. It is self 'managing'. Those that are poor producers will simply not succeed as well as those that are better producers.
Even an employee at a company is socialism. He voluntarily works there. He voluntarily accepted the agreed upon price (wage). He can leave anytime he is dissatisfied with either. Nothing stops him from finding another job or even going out and starting his own business except his own innovation and drive.
Socialism is an enforced 'sharing' system that is based on theft of wealth. It does not create wealth. Indeed, it cannot exist without capitalism to steal from. It comes in three major forms; all supported, incidentally by Democrats. It comes in three major forms; fascism, communism, and slavery.
Fascism (using that term, which was coined by the dictator Mussolini in italy, but which has always existed as long as there have been governments) is government manipulation of markets. In other words, it's 'managing' the market. Examples of fascism include price controls (including wage controls and minimum wage laws), dictates about what product you cannot or must create, hours of operation, who you can fire, who you can hire (government racism and bigotry laws such as Affirmative Action laws and the so-called 'Equal Opportunity' laws (which are really just government imposed racism and bigotry again), and even where you are allowed to operate your business (zoning laws).
The reason fascism doesn't work is because the government has the audacity to declare it knows the market better than you do. Since government produces nothing, it has no clue. Any 'management' is effectively closing the barn doors after the horses have long gone.
Karl Marx described fascism as a stepping stone on the road to communism in his writings. He was, of course, a socialist.
Communism has also been around as long as governments. Communism is government ownership of markets. In other words, government welfare programs, which takes money by force from producers and gives it to nonproducers (including the government itself, which takes a hefty skim for itself!). Examples of these are the Federal Reserve, Chinese concrete, asphalt, and steel markets, Obamacare government health insurance, Social Security, Medicare/Medicaid, Agricultural welfare programs, etc. This is also sometimes described as a 'managed' economy, but in reality that economy is OWNED by the government and not managed at all, except by twits in government that have no clue what they're doing, and have no market forces or customer needs to satisfy. 'Customers' are often made slaves to that government owned market.
Democrats try to classify communism as 'charity'. This is an egregious error. Communism is THEFT of wealth. Charity is the VOLUNTARY sharing of wealth and is done out love for your fellow man. One is compulsion. One is voluntary.
The 3rd major form of socialism is slavery. This is simply theft of labor. The slave does not get to benefit from his labor. The Master takes all. The Master does provide the slave with food and housing (most of the time), but usually under terrible and even criminal conditions.
Capitalism exists in all nations. It is also the basis of international trade.
Fascism exists in all nations. It is also the basis of 'managed' economies.
Slavery exists in most nations (including the United States, illegally).
The difference between capitalism and socialism is clear. Capitalism is about choice. Socialism is about compulsion.