Fat as a cow.
More Traditional Proverbs:
The fox never found a better messenger than himself.Traditional
This world is not so bad a world as some folks try to make it. But whether good or bad depends on how you take it.
Traditional
If you chase two hares, both will escape you
Traditional
Stubborn as a mule.
Traditional
Dig up dirt on him.
Traditional
We didn't inherit the land from our fathers. We are borrowing it from our children.
Traditional