Place cucumbers on a cutting board and use a large pestle or rolling pin to gently smash the cucumbers. Rotate the cucumbers as you hit them. If you're afraid of cucumber pieces flying everywhere, you can place the cucumbers in a ziplock bag first.
When there are cracks all over the cucumbers, chop into pieces or use your hands to separate into pieces.
Add cucumbers to a bowl with the remaining ingredients and combine.
For better flavor, marinate for 1-2 hours in the fridge.