好白菜都讓豬拱了

Phrase

 * 1)  All the good cabbage crops have been eaten or ruined by the pigs.
 * 2)  Those that of high quality have all been spoiled or taken by someone unfitting.
 * 3)  All the good(-looking) girls have been taken or ruined by the ugly men (or scumbags).

Usage notes
Note that the last meaning has a sexual undertone, since means “to push with the body ”, an action similar to those in intercourse.