1. The act of someone controlling somebody, especially when their's no commitment involved, so that somebody cannot move forth nor make up it's own mind, while letting that someone have it's way.

2. The act of someone controlling somebody's social life and activities.

3. The act of someone reporting it's every move to somebody.

4. Restrained from moving or acting; check, in check.

5. Someone who invades somebody's privacy.

6. Prison inmates confined to their cells as a security measure following a disturbance in the prison.

7. A prison, especially one that's maximum security.
Why the average young female that has a child, is on lockdown by the baby daddy?
by Mr. Terrence L. Trezvant March 11, 2006
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To keep a close eye on.
I got that bitch on lockdown.
by ky August 13, 2003
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Turning off all commuinication with the outside world (cell phones, phones, tv, computer, not answering door, having the dog(s)/cat(s)/kid(s) stay at the dogsitters/babysitters - to have mind-blowing, mind-altered sex.

Self-inflicted isolation for the purpose of re-booting the soul.
"LOCKDOWN."

"What happens in lockdown, stays in lockdown."
by Abella Sorella February 23, 2009
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Nickname for really tight people who "lock it down" in activities such as sports and whose name starts with an L.
-"Oh shit! He got you on lockdown."

-"Lockdown Lamey!"
by Friendly Hamster April 13, 2009
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Lockdown, or Lockdown Mode, is when a public school building is literally locked down so that the Police, as well as the Great Drug-Sniffing Dogs, can search - without a warrant - lockers for drugs and other Contraband Items. And before you ask, yes it is constitutional. I am so sorry.
1. During the annual lockdown mode, we must turn off all the lights in the classroom and not move a muscle; if we are seen in the hallways we are automatically a suspect.

2. Many students question whether this Torture violates the fourth amendment - as there is search and seizure going on without a Warrant - but I'm afraid that you lose many constitutional rights when we go into our schools.
by aleclair March 5, 2006
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An incident in a school in which all of the doors are locked, and students are removed from "dangerous" places in the school. Generally, the police are on scene, whether it is for the drug dogs or SWAT.
Oh, Stroudsburg High School is on lockdown again. I wonder if they will be on CNN this time.
by pizzaman035 March 26, 2008
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