The idiomatic expression "calling a spade a spade" means to speak frankly and directly about something, even if it is unpleasant or controversial. Full definition
look lets call a spade a spade, the reason we can not compete at the highest level is because of our lack of spending on top quality players while other top teams are willing to pay huge transfers and fat salaries. (justarsenal.com)
The changes in body fat are so tiny that I thought it was important to call a spade a spade here. (health.com)
I think that its high time americans call a spade a spade for once lets God's will b done to avoid His wrath (religion.blogs.cnn.com)