Skip to main content
A special gathering or sleepover that takes place in a building from dawn 'till dusk, or 12 hours. At the beginning you're doing a bunch of activities and games, watching the movies the chaperones provide, until usually 9 hours in. And at this time everyone becomes either testy, zombie like, hyper, or bored. Usually the activities cease (except for the video game tournaments and the movies) and everyone falls asleep or just talks about a boring subject. By this time the food is all gone, so everyone is scavenging for any scrap of sugar.
The lock-in started at 7 pm and ended at 7 am. I think I passed out at 4 am.
Lock-In by TestyWhenHungry May 14, 2011
Lock-In mug front
Get the Lock-In mug.
See more merch
popular slang for a homodyne with an extremely low pass filter, which making it very narrow band. Usually includes a frequency mixer, and not to be confused with bandpass filter.
"That lock-in is essentially shot-noise limited."

"I'm using the reference from that lock-in because I don't have a function generator."
lock-in by novakyu December 25, 2007
Drinking within a Pub after opening hours, the landlord allows a group to keep drinking after all other customers have left. They have locked all the doors, hence it being called a Lock In. When a Lock-In is permitted it usually results in a legendary sesh.
John the pub landlord allowed us to do a lock-in and keep seshing into the morning.
Lock-In by Ellis_ April 6, 2023

Lock in a sock 

Also known as a "Slock". A lethal and very crude weapon of true desperation, often times used by convicts in prison. The lock in a sock is a blunt trauma weapon that inflicts bruises and broken bones to its victims. It's known for its ability to kill or severely injure in a single blow.

Lock in a sock is a generalized term, as in reality convicts load socks not only with combination padlocks, but also other heavy items such as large batteries, bars of soap, fruit, rocks, or even toilet paper mache balls. Basically if it is blunt, heavy, or dense, it can be dropped inside of a sock and used as a weapon. While large batteries, large rocks, and locks loaded into a sock can be lethal; often times prisoners use soap or fruit not to kill, but to send a message as they are less than lethal.

Slocks are known for their stopping power and in the hands of a skilled combatant, a very deadly weapon. On the street slocks are often used in conjunction with bandanas and common among biker gangs.

They are also used in the ghetto by poor people or carried as a defense weapon. Locks and bandanas can be taken apart immediately before frisked by police allowing the weapon to remain undetected and then reassembled afterward.
In some states in America, possession of a Slock is classified as a deadly weapon. They fall under the classification of "Slungshot".
Yo he just got knocked tf out by a Lock in a sock!

Sh*ts about to go down bruh, grab You a lock in a sock!

lock in foe i tweak out 

its like saying, be cool before i go crazy ts
*somebody does some stupid shit*, "aye, cuzzo lock in foe i tweak out'

lock in foe i tweak out 

be mine before i go berserks on yo ass / shooting yo shot
aye yo carmen , lock in foe i tweak out😎😩”

Lock-in-the-sock 

Lock-in-the-sock is what happens to ex mafia now snitches not sayin names but you whitey bulger
"Bro u hear what happened to whitey bulger?" Yea man he snitched and got the old lock-in-the-sock it's crazy these days