Hold your horses!

hold your horses

Wait a moment or be patient (often because you are moving too quickly or thoughtlessly). Whoa, hold your horses, kids. We're going to sing before we start eating cake. I know you're excited to see the prototype, but you all just need to hold your horses while we get set up.
See also: hold, horse
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Hold your horses!

 and Hold your tater!
Fig. Inf. Wait! Tom: Let's go! Let's go! Mary: Hold your horses. Hold your tater, now. Where did you say you are going?
See also: hold
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Animal handlers would shout to the crowds, "Hold your horses!" because the elephants frightened them.
HOLD your horses! Training for the Panto Horse Grand National got under way when competing steeds turned up at Birmingham's City Plaza for a bit of horseplay ahead of Sunday's big race.