- of a
- of aUS informal— used to indicate that someone or something is a particular type of person or thing
her idiot of a husband [=her idiot/idiotic husband]
Some fool of a policeman had arrested the wrong man!
It is not that much of a problem. [=it is not a big problem]
It wasn't that difficult of a shot. [=it was not a difficult shot]
It wasn't that big of a deal.
How big of a piece do you want?
• • •Main Entry: ↑of
Useful english dictionary. 2012.