חפשו מילה כלשהי, כמו bukkake:
 
1.
When you find out that a girl/guy you are dating is into something really cool and unexpected so you must make them your gf/bf.
Guy 1: "So this girl I scored wants to go see Iron Man 2 and go shooting!"

Guy 2: "Dude!! Lock it down!!"
מאת RedandGreen 2 במאי, 2010
 
2.
to finalize a decision or plan
Let's make sure Greg's cool with tonight before we lock it down.
מאת lottanyx 11 בפברואר, 2010
 
3.
Shut the fuck up and calm the fuck down, please.

Traditionally used on a film set, but also useful for stopping multiple friends, lovers, and strangers from doing stupid, often alcohol-induced things.
"Hey, give me five dollars and we'll grab that mannequin's titties."

"LOCK IT DOWN."
מאת ABlair 13 בינואר, 2008