To bear marks of great study and labor.
Suggesting work done throughout the night.
smell a rat
To sense something suspicious.
smell the barn
To act with renewed energy or speed or to experience heightened antici…
smell of an oily rag
A very small amount, or the absolute minimum (usually of money).
smell like a rose
To be regarded as appealing, virtuous, or respectable; to be untainted…
smell blood
To sense that one has an advantage over an adversary or rival.
smell fishy
To seem suspicious.