Examples of use of lock-in
1. Consumers "lock in purchases with all the promotions....
2. Presidential candidates are turning cartwheels to lock in early votes.
3. Is there something about Islam that serves to lock in mankind‘s inherently tribal instincts?
4. The two sector fell as investors paused to lock in on recent gains.
5. The president who waged a preemptive war now wants to lock in place a preemptive occupation.