back to front

back to front

1. Turned so that the back is now at the front; the wrong way around.

   I was in such a hurry that I put my underpants on back to front.

   (figuratively, by extension) Of an order or cause of events, misunderstood or misinterpreted.

   (figuratively, by extension) Of a perspective, reversed or inverted.

• backwards

back to front

1. Reversed, with the back now at the front.

   The classic VW Beetle is a back to front car, with the engine at the rear.

• inside out
• upside down

• front to back