get one’s tail somewhere fast!

get (one's) tail (somewhere)

slang To move to some place or thing quickly. An adverb indicating speed (such as "fast" or "immediately") is often used after "somewhere." You better get your tail in there—Mom's looking for you. I heard the bell ring and got my tail inside immediately.
See also: get, tail
Farlex Dictionary of Idioms.

get one’s tail somewhere fast!

and get one’s tail somewhere now! and get one’s tail somewhere immediately!
tv. to move oneself to a particular place fast. You get your tail over here immediately! I’ll tell you one more time. Get your tail into my office immediately!
See also: get, somewhere, tail
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • get (one's) tail (somewhere)
  • get one’s tail somewhere immediately!
  • get one’s tail somewhere now!
  • catty
  • catty-corner
  • shove (one's) way
  • shove way
  • second hand
  • second, third, etc. hand
  • out and out