[Answer] If I were to say somebody was not the full quid, what would I mean?

Step 1 : Introduction to the question "If I were to say somebody was not the full quid, what would I mean?"

...A quid is a slang expression for a pound, which was a unit of currency in Australia, as well as a unit of weight before the metric system was introduced. Someone "not the full quid" does not measure up!