According to the wiktionary[1] it is "rhyming slang" from: apples and spice = nice [1] https://en.wiktionary.org/wiki/she%27ll_be_apples https://en.wiktio

According to the wiktionary[1] it is "rhyming slang" from: apples and spice = nice [1] https://en.wiktionary.org/wiki/she%27ll_be_apples https://en.wiktionary.org/wiki/she%27ll_be_apples