a whale of a (something)

1. an unusually good something.

Perry's done a whale of a job for us.

We had a whale of a time, and we were sorry when we had to leave.

2. an unusually large something.

There's a whale of a difference between being a partner in a law firm and just being another lawyer.

• not in the business of
• not in the business of doing something
• not in the least
• not in the same league
• not in the slightest
• not judge a book by its cover
• not know beans about
• not know beans about something
• not know from Adam
• not know if are coming or going
• not know if you are coming or going
• not know someone from Adam
• not know the first thing about
• not know the first thing about something
• not know the half of it
• not know the meaning of the word
• not know what hit
• not know what hit you
• not know where to put
• not know where to put yourself
• not know where to turn
• not know whether are coming or going
• not know whether to laugh or cry
• not know whether you are coming or going
• not know which way to turn