A genius musician who lived rich, died young, and wrote the best music ever.

When your banging a person in front of the piano while you bash their head on the piano keys

When a guy makes a girl's loose pussy his own personal piano. A girl fingered with four or more fingers.

A composer/pianist who arguably wrote some of the greatest music of all time. Mozart was neither popular nor rich during his lifetime. In fact, Mozart was extremely poor and could hardly afford food for himself, his wife, and his two children. Mozart was virtually starved at the time of his death, he may have lived longer had he more money to afford food and good living conditions.
It is not known where Mozart is buried because he did not have enough money left for his family to buy him a proper burial. It is assumed that he was buried in a mass grave for paupers. Sadly, many composers, painters, and playwrights died unpopular and relatively poor and have only received fame and glory far after their deaths.

To be extremely drunk. So named in honor of the famous composer, Wolfgang Amadeus Mozart, who spent extended periods of time composing music while feverishly intoxicated.

Mozart or Wolfgang Amadeus Mozart, was a famous pianist and composer of the 1,700's but this is also used in "pulling off a Mozart" as in someone is playing the piano while exposing their anus and making farting noises.
This is oftenly thought of as badass among pianists and extremely challenging.

A person who liked shit