(In Baltimore, specifically), cops that work in the street-level narcotics unit. The name comes from the say they knock in doors to serve search warrants.
by kjMD September 6, 2020
by Comedy_Camel August 21, 2016
person 1:you see that bitch over there
person 2: yeah hes a knocker got 5 kids already
person 1: thats mental hes only 17
person 2: yeah hes a knocker got 5 kids already
person 1: thats mental hes only 17
by pikapac May 4, 2020
by Knocker101 May 13, 2021
by Taishokukitten November 23, 2016