Hold your horses is what you say to make somebody slow down and wait. Hold your horses a minute, tell them to hold your horses.
It is informal, friendly and slightly old-fashioned, and it is nearly always said as an instruction. The picture is from reining in a team before it bolts.
1phrasehold your horsesWhat you say to make someone slow down and wait.
“Hold your horses until we have heard the other side.”
hold your horses is a phrase.
Practised in Idioms