dead·head /ˈdɛdˌhɛd/
免票的人;空車;無能力者,庸人
Dead·head n.
1. One who receives free tickets for theaters, public conveyances, etc. [Colloq. U. S.]
2. Naut. A buoy. See under Dead, a.
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deadhead
n 1: a nonenterprising person who is not paying his way; "the
deadheads on the payroll should be eased out as fast as
possible"
2: a train or bus or taxi traveling empty