nick
n.— «Then he saw a familiar face: his close friend’s mom. “I need a nick,” she mumbled to him. Without hesitation, he sold her a nickel bag—$5 worth of crack.» —“Philly’s drug dealers: Younger all the time” by Simone Weichselbaum Philadelphia Daily News (Pennsylvania) Dec. 27, 2006. (source: Double-Tongued Dictionary)