'Deady Dyckman' is a term that originated in Manhattan, New York City, and is used to express emphasis on something. The first use of the word came from the Acapulco Deli on Dyckman Street.
Lenny Acapulco invented the term by notoriously saying in 2002 "We outside this summer, its on DEADY DYCKMAN YURR"
"Wtm broski" said hoodfavv.$id
"We should go get food on deady dyckman" said EBK T2