if your music repeats over those few chords, that is that particular chord progression for that particular verse,chorus or bridge.
And these chord progressions are common found on other songs as well.. you cant run away from that nor can you actually create a new chord progression unless its like you born some few thousand years ago.. haha..
take chinese songs for example, we all know that 80% or more of those songs are based on the canon's progression!
So basically if i'm not wrong, its jus a word to use to describe a part of the music.. like or you might wanna call it chord cycle? chord pattern? see?
dun worry so much about this phrase man!