Slightly more than 1,600 of you answered 'yes' to the question 'I still giggle when I hear the phrase down under.
When people hear the phrase "down under", it doesn't have an effect on them. 
mnli hypothesis: When people hear the phrase "down under", it doesn't have an effect on them.  premise: Slightly more than 1,600 of you answered 'yes' to the question 'I still giggle when I hear the phrase down under.