To wake up or to pick up a person
Sure, Knock me up when you get here
Honking your car horn to announce your arrival at someone's house, instead of getting out of your car and knocking on their door like a civilized person.
Origin: St. Louis, MO
My neighbor's visitor picked them up at 3 AM, gave the south side knock when they pulled up .
medical term: to give enough medication to render them compliant
That patient was yelling out last night so we had to knock his dick in the dirt!
knocking on someones door and running away to piss them off.
man 1:{knocks on door}
man 2: im coming im comig {gets up and walks to the door to open it}
man 1:{runs away}
man 2:ive been knock down gingered
British:
To wake you up tomorrow. It goes back to the days in before alarms where they used to come around and knock on your door to wake you up. Moden UK or british type hotel clerks will still use the saying.
I'll knock you up in morning, we'll suck a quick fag and be off.