The term 'BIG MAN IN L.A.' is referring to the basketball player Shaquille O'Neal, who is commonly known as 'Shaq'. Shaq is a four-time NBA champion and was named one of the 50 Greatest Players in NBA History. He played for the Los Angeles Lakers from 1996 to 2004, and was an integral part of their three-peat championship run from 2000 to 2002. He is widely considered one of the most dominant players in NBA history.