Beat a hasty retreat and Fall back

Fall back and beat a hasty retreat are semantically related In some cases you can use "Fall back" instead a verb phrase "Beat a hasty retreat".

Fall back verb - To move back or away (as from something difficult, dangerous, or disagreeable).

Beat a hasty retreat and fall back are semantically related in turn tail topic. Sometimes you can use "Beat a hasty retreat" instead a verb "Fall back".