" Par," said Wilfred Wimp, "what's a alleybi? A marble?" "No, my lad," said Grodman, "it means being somewhere else when you're supposed to be somewhere." "Ah, playing truant," said Wilfred self-consciously; his schoolmaster had often proved an alibi against him. "Then Denzil will be hanged. "
― Israel Zangwill , The Big Bow Mystery