Definitions
chivendekete: person who has lost some teeth
Translation
The one with a gap laughs at the one with a broken tooth.
Application
People often notice and criticise faults in others while overlooking their own. It is used when someone criticises or mocks another person for a fault they themselves also have, often to an equal or even greater degree. It reminds us to reflect on our own shortcomings before pointing out those of others.