cachudo
Means your wife is cheating on you.
Cuidado no vayas a ser cachudo.
Be careful you're wife might be cheating on you.
Be careful you're wife might be cheating on you.
Cachudo
Also Cornudo in some parts of the Spanish speaking world. It means cuckold. Cachuda for women (cuckqueans)
Que cachudo que eres! (You're such a cuckold!)