Question

The requests piled up while she was away.‎

Accepted Answer

(idiomatichttps://en.wiktionary.org/wiki/Appendix:Glossary#idiomatic, intransitivehttps://en.wiktionary.org/wiki/Appendix:Glossary#intransitive) To collecthttps://en.wiktionary.org/wiki/collect or accumulatehttps://en.wiktionary.org/wiki/accumulate, as a backloghttps://en.wiktionary.org/wiki/backlog.

Sentence	The requests piled up while she was away.‎
Definition	( idiomatic https://en.wiktionary.org/wiki/Appendix:Glossary#idiomatic , intransitive https://en.wiktionary.org/wiki/Appendix:Glossary#intransitive ) To collect https://en.wiktionary.org/wiki/collect or accumulate https://en.wiktionary.org/wiki/accumulate , as a backlog https://en.wiktionary.org/wiki/backlog .

Requests Piled Away.‎ The Up