I've been watching this video from 8-bit music theoryand he mentioned lockups and lockdowns in chord progressions (at 4:17). What does that mean?
Although it sounds like the speaker may be saying "lockup" and "lockdown," he is actually saying "walk up" and "walk down." The chord progressions are "walking up" when they seem to ascend melodically, and "walking down" when they seem to descend melodically.
This "walk up/down" terminology refers to a root motion that ascends or descends a scale by step, rather than by leaps (thanks @user452665).