Call a spade a spade
Definition 1 of 1
Pro Tip 1/3Directness
The phrase suggests a very straightforward, no-nonsense approach to communicating. 
During the meeting, the manager decided to call a spade a spade and critique the team's performance openly.
Pro Tip 2/3Potential Offense
Using the phrase can be seen as blunt and may offend, so be mindful of your audience. 
When she called a spade a spade in front of the clients, they seemed a bit taken aback.
Pro Tip 3/3Cultural Sensitivity
Be aware that in some cultures, speaking too directly can be considered rude. 
In some cultures, calling a spade a spade might not be the best approach in a formal setting.