man lock

American  

noun

1. an air lock serving as a decompression chamber for workers.

---

man lock British  

noun

1. civil engineering an airlock that allows workmen to pass in and out of spaces with differing air pressures, esp one providing access to and from a tunnel, shaft, or caisson in which the air is compressed

---

Example Sentences

She does not care for President Donald J. Trump, and she has been known to walk the neighborhood holding a cardboard sign with the message, “Nasty Man, Lock Him Up.”

From New York Times

"You know how many Christmas Eves I've been deprived of my own blood kin? Now is that fair, to do that to a man? Lock him up for a crime he never did?"

From Literature

Civil engineering terms such as "man hole" and "man lock," also will not be changed because no common-sense substitutes could easily be found, Thiessen said.

From Reuters

Faced with man lock, the revisers could only propose the cumbersome air lock serving as a decompression chamber for workers.

From Time

As for the captain, he had carried his over his shoulder by a bandoleer, and like a wise man, lock uppermost.

From Project Gutenberg