活该 :
1. (coll.) serve sb. right
2. deservedly
3. ought
4. should
Relative explainations:
Examples:
1. 如果他真地要你当众收回海口，那你也是活该；你本不该那样自吹自擂。
It serves you right if he did make you eat the leek in public; you should not be so boastful.
2. 他揍了你我毫不同情——是你先打他的，你挨打活该。
I'm not sorry he hit you- it serves you fight for starting the fight!
3. 我真是活该!
That's all I need!
