here we go
1. An expression used when something is about to begin or arrive. Here we go, another one of Grandpa's boring stories! A: "When are the fireworks going to start? We've been waiting here for over an hour!" B: "Here we go, the first one just went off."
2. Said when something or someone has been found or identified. Let me just see if I can find that in the library database… here we go, the complete works of William Shakespeare.
3. A chant used by fans in a football (soccer) audience to show support for their team, especially after a successful play. Primarily heard in UK. The tremendous roar of "Here we go, here we go, here we go" had become completely deafening after the goal.