Pronunciation of "Knickerbocker", dropping the "er" sound for the "ah" sound of street slang.
The term "Knickerbocker" refers to a New Yorker. The origin of this term is from the NBA's New York Knicks francise. The team was originally called the New York Knickerbockers, which was later shortened to "New York Knicks".
Jerome: Man I can't stand the Knicks yo...
Alan: Knickabocka please!
-Source Alan & Jerome FOXSports Commercial