Knocking Calf

The raising of one foot onto an elevated surface, arching of the knee, then reaching under with one hand in order to perform sexual acts upon oneself. Traditionally performed in a seated position with a slight hunch in the back. Not recommended for those suffering from lower back pain or chronic injuries.

I hear Steve put his back out again knocking calf last night. We really have to find him a girlfriend

knocked-up

To impregnate a lady..

"Lucy got knocked-up by Jeff.."

nigger knock

To knock on an anonomous door and run away!
Also known as ding dong ditch.

Jane told Tom and Dick, I'm bored' lets go nigger knock Harry's house and hide in the bushes.

knock it down

A phrase employed in the Army, ordering soldiers to do push-ups.

MAJ Lim: "Knock it down!"
REC Boa: "Yes Major!"

knock out

to go to sleep. mainly said in reference to a full nights rest, 7 or more hours.

hey man, i'm about to knock out. laters.

knock on wood

this expression is a superstition that is used in the hope that a good thing will continue to occur even after its mentioned.

For Example : "My throat is finally feeling better, knock on wood!"

or

"I'm so happy it hasn't rained yet, knock on wood"

knock up

1.(North America) V. To get Pregnant
2.(Great Britain) V. To wake up

"Billy go and knock up your sleppy head brother."