Vamoose!

vamoose

slang To leave or decamp very hurriedly. Derived from the Spanish word "vamos." We'd better vamoose if we don't want to get caught in that storm!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Vamoose!

(væˈmus)
exclam. Beat it!; Go away! (From Spanish.) Go on, beat it! Vamoose!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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If a moose charges you, then vamoose! Alaska is one of the world's last great wildernesses, with the emphasis on the wild.
Vamoose! is an original 56 page story by Meg Rosoff.
As noticed by Craddock (1981: 199), the first person singular hortatory imperative vamos 'let's go' spawned the second person command vamoose! 'beat it, scram'.