Gary Giggles is asked his knowledge of cha-cha-cha to which he replies 'Seven steps.' How many steps are there in cha-cha-cha, and what does it mean that he knows seven steps?
In the American School of Ballroom Dance, the basic step spans two measures of music (frequently counted "one, two, three, four-and, five, six, seven, eight-and" with "five" marking the beginning of the second measure.
So, there are 8 steps, and while Gary doesn't know them all, he knows 7 steps i.e. all but 1 step?