sack time
noun
,
Slang.
1.
time spent sleeping.
Origin
1940-45,
Americanism
Slang definitions & phrases for
sack time
sack duty
noun phrase
Sleeping time; sleep; loafing
: Get in some sack drill
(WWII armed forces)
sack time
noun phrase
sack duty
Bedtime; time to retire
(fr WWII armed forces)