(名詞/不可數) 偷竊外送或快遞留在某人屋外的包裹的行為。
引句：
Porch piracy is a huge issue in the US, and getting refunds is difficult. Only 54% of porch pirate victims were refunded when reporting a package as stolen. The survey showed that an average of 29% of Americans reported having had a package stolen from their porch, front door or mailbox.
[zdnet.com, 11 August 2021]
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