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1.
to knock on the door and run lika motha fucka!!!!!!!!!!!!!!!
mike:hey yo dawg wanna go nigga knockin
sam:yea man but u gotta run fast so the people dont see us
so run!!!!!!!!!!!
mike:we out homes
by mo bro March 07, 2008
 
2.
to knock on doors and run
person1: I'm bored
person2: It's so boring, there's nothing to do.
person1: I know, let's go nigga knockin'
person1: hahahaha, okay

*person1 and person2 walk up to a house, knock on the door, and run before anyone has a chance to answer it*

*person1 and person2 repeat the above process until they hit the wrong house and a big fast dude comes running out and gives them a stomp johnson*
by Douglas Teel October 31, 2007
 
3.
similar to ding-ding ditch. Going around the neighborhood with a group (often times youth of darker color/of minorities), knocking on a door, then running before the bullet catches you. preferably played in the dark.
kids: yo lets go knock on ki-ki's baby daddy's crib!
(knock, knock)
ki-ki's man: yo if yall fucking nigga kids come by hur nigga knockin on my doe one moe goddamn time imma raid all yall mail boxes. funna take all yall welfare checks. i gots kids to feed.
by so_umm_yeah May 07, 2009