I'll eat my hat = used to say that you think something is not true or will not happen.
Joe college = a typical or average male college student.
Kill joy = someone who spoils other people's pleasure
Play hooky = stay away from school or work when you should be there. (از مدرسه و کار جیم شدن)
Somebody's name is mud = if your name is mud, people are annoyed with you because you have caused trouble. It also means that you will be criticized or your reputation will be spoiled.
Speak of the devil = said when a person who you are talking about comes into the room. (وقتی راجع به یکی داری صحبت میکنی از در میاد تو)
Have a field day = to have a chance to do what you want especially a chance to criticize someone.
(داشتن یک شانس برای انجام کارهایی که می خواهید)
In tandem with = happening at the same time.
(همزمان اتفاق افتادن)
Make it =
1. To be successful in a particular activity or profession.
(موفقیت در یک حرفه)
2. To arrive somewhere in time for something.