Sorry, but never got "read on," nor has anyone I've known. Not saying YOU didn't use the term, it's just not used. Were you in during the civil war?
Here:
Individuals with a security clearance may be "read into” SCI as a part of their jobs. One must receive explicit permission to access an SCI control system or compartment. This process may include a polygraph or other approved investigative or adjudicative action.
Hey wannabe, you got your nunchucks in the waste band of your American flag stretchy pants going to your Rex Kwan Do class.
Put down the keyborad, come out of the closet, I mean basement, and get moving along before your late. You’ll meet the short bus at the corner.
BTW do you have drool proof keyboard?