The juncture at which a tire starts to skid during braking. A tire's maximum braking force is developed when it is on the verge of lockup, so a car's shortest stopping distances are produced when its front and rear tires approach lockup simultaneously. This is very hard to achieve under varying conditions of load and traction, so one end typically ... Found on http://www.caranddriver.com/reviews/glossary-of-terms-info
a jail, esp. a local one for temporary detention. · the act of locking up or the state of being locked up. · a temporary imprisonment or detention, as of suspects or prisoners. · a stock that has been held by an individual as a long-term investment, or that a brokerage firm is required by a regulation to hold for a certain period ... Found on https://www.infoplease.com/dictionary/lockup