a superstition where you take a shit and flush, then immediately knock twice on the wall to keep ursula from coming out of the toilet to grab your ass
“i need to take a shit”
“alright man, just make sure to poo knock after”
Knocking hard on the door like you da police!
Nigg@, don't be ghetto knocking on my door. Who the f#$% you think you is? The police?!? Nigg@ please!!!!
when someone is or is being shady or shiesty
"dude, you talk to adam?"
"Naw why?"
"dawg he's been creep knockin lately."
The act of two men knocking together each others erect genitalia for pleasure.
Mike: Whatcha doing this weekend?
Boneknocker: I think I'm going to spend my saturdaying bone knocking with Jim.
Mike: What the hell is bone knocking?
Being afraid (phobia) of someone knocking on your door.
I have knocking phobia because knowing the thought that a stranger could be at my door waiting to harm me.
When a topless or nearly topless woman's breasts are slapping together, caused by a back and forth motion during vigorous activities, such as sex or jogging
Slow down baby, I got some serious boob knocking going on here.