так себе, "серединка на половинку"
"How is the patient today, doctor?" - "So-so," the latter responded.
- sacred cow
- see a man about a dog
- separate the sheep from the goats
- serve as a guinea pig
- shaggy dog story
- smell a rat
- squirrel (something) away
- straight from the horse's mouth
- straw that broke the camel's back
- spread one's wings
- swan song
- save one's breath
- save (someone's) neck/skin
- say (something) under one's breath