A metaphor used to describe one's domination over another, be it physical, verbal or in any form of competition. Refers to the record-breaking Los Angeles Lakers vs. Toronto Raptors game in which Kobe Bryant scored 81 points.
"Bob is really pissing me off. He'd better slow his role before I drop 81 on his sorry ass (beat him up)."
Brian: Who do you think would win in a rap battle, Jay-Z or Nas?
Bill: Are you kidding? Jay-Z would straight drop 81 on Nas' bitch ass.