Definition from Wiktionary, the free dictionary
See also lock-in
- A sleepover party, usually held in a public place such as a church or school, in which the participants are not allowed to leave until the next morning.
- The youth group will have their annual lock-in this weekend.
- To secure someone or something in a locked enclosure.
- To fix the value of something potentially variable.
- I've locked in a rate of 5%