What is the meaning of 5 hitch 6 in square dance password teaching

We usually like to use 1234.2234.3234.4234.5234.6234.7234.8234 or 1234.2234.3234.4234 when we shout the beat, but there is also a use of 1搭2....5搭6没有具体含义，只是打拍拍子的