hold your horses
US /hoʊld jʊər ˈhɔːrsɪz/
UK /hoʊld jʊər ˈhɔːrsɪz/
1.
used to tell someone to slow down, wait, or be patient
:
•
Hold your horses, we still have plenty of time before the movie starts.
•
I know you're excited, but hold your horses; we need to plan this carefully.