Here's a breakdown of the pronunciation:
* Dépêche: deh-pehsh
* -toi: twah
Other ways to say "hurry up" in French:
* Fais vite! (fay veet) - "Do it quickly!"
* Allez, vite! (ah-lay veet) - "Go, quickly!"
* Vite fait! (veet fay) - "Quickly done!"
The best choice depends on the context and the level of formality. "Dépêche-toi!" is generally the most direct and informal.