You can say, "I'm so mad at you. I can't believe you 'let the cat out of the bag'. I can't believe you told him I have a crush on him. How could you?" What does it mean? Watch here. For more videos - go to www.youtube.com/KhmerSpecialEnglish or www.khmer.voanews.com/maniandmori. To contact Mani & Mori - write to them at email@example.com.