Usage

A Blessing in Disguise
A bad or inconvenient event that later turns out to have a useful or positive result.
A Fighting Chance
A real but limited possibility of success in a difficult situation.
A Little Bird Told Me
A playful way to say you know something without naming the source.
Add Fuel to the Fire
To make an already tense, angry, or unstable situation even worse.
At the End of the Day
Ultimately or after everything else has been considered.
Beginner's Luck
Unexpected success by someone who is trying something for the first time.
Bottom Line
The decisive result, essential point, or practical conclusion that matters most.
Burn the Midnight Oil
To work or study late into the night in order to finish something.
Call a Spade a Spade
To speak plainly and directly without hiding behind softer wording.
Too Good to Be True
So appealing or perfect that it raises suspicion instead of trust.
When It Rains, It Pours
Problems or events arrive all at once instead of appearing one by one.

Cliché Dictionary

Topic-first explanations of English expressions, with the legacy A-Z archive kept as secondary lookup.