Some people with a higher than average IQ (50% of the population by definition) seem to think that it also means that they are extremely intelligent too. So if your IQ is in the top 5% of the country you are obviously in the top 5% in the country for intelligence.
This is of course bullshit. IQ tests measure how good you are at the tests in an IQ test, not how intelligent you are (as demonstrated by the nonsense in the quote).