pull the pin(redirected from pulling the pin)
pull the pin
To leave a job, especially by retiring. The wording of the phrase alludes to train cars, which can be separated by pulling a pin from the coupler connecting them. Primarily heard in US. You're 70 years old, Pop—it's time to pull the pin and see what retirement is like.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.