Can anyone explain what square dancing a few beats is?

A few beats is the number of steps in the rhythm of a step, usually called four eight beats or something like that, such as

An eight beat, that is, one, two, three, four, five, six, seven, eight,

Two eight beats, that is, two, two, three, four, five, six, seven, eight,

Three eight beats, that is, three, two, three, four, five, six, seven, eight,

Four eight beats, that is, four, two, three, four, five, six, seven, eight.