What does the French word gagagogo mean in Enghish?

"Gagagogo" isn't a real French word. It's likely a playful or made-up word that sounds like an onomatopoeia for rushing or urging someone forward.

It could be similar to English expressions like:

* "Go, go, go!"

* "Hurry up!"

* "Let's move!"

The repetition of "ga" might emphasize the urgency or excitement.