Don't throw out your dirty water until you get in fresh proverbial saying, late 15th century, warning against leaving oneself without even unsatisfactory resources before ensuring that replacements are available.
don't throw the baby out with the bathwater proverbial saying, mid 19th century, meaning that in getting rid of something regarded as unnecessary one should be careful not to lose what really matters by accident as well. An early 17th-century German source as the related, ‘this is a caution…lest you thrown out the baby with the bath.’
throw someone to the wolves sacrifice another person in order to avert danger or difficulties for oneself; probably in allusion to stories of wolves in a pack pursuing travellers in a horse-drawn sleigh.
throw up the sponge abandon a contest or struggle, submit, give in; in boxing, throw up the sponge used to wipe a contestant's face as a sign that a fight has been abandoned.
See also throw dirt enough, and some will stick, people who live in glass houses shouldn't throw stones, throw one's hat into the ring, throw someone to the lions, do not throw pearls to swine at pearl.