Then the doors would be slammed shut, all the clerks flew to arms, up ran the consular flag, and zizz!
noun
: She stretched out for a short zizz
verb
To sleep;snooze; nap; cop zs (1920s+ British armed forces)
[echoic of the sibilance or buzzing of one who sleeps, hence semantically akin to the notion of sawing wood]