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.
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.