The phrase "were on up up" suggests progress, growth or improvement. Synonyms for this phrase include "making headway", "moving forward", "advancing", "ascending" and "on an upward trajectory". When things are "on the up", they are improving, developing or on the rise. Other synonyms for this phrase might include "looking up", "getting better", "flourishing" or "prospering". This can be applied to various aspects, whether it's personal development or the growth of a business or economy. Ultimately, the phrase indicates positivity and a promising future, and there are many ways to describe this upward momentum.