Appropriated from the dated, speciesist, and sometimes sexist, phrase: "Two birds with one stone".

This is when two police officers are hit with the same rock thrown at them, commonly in a riot situation, which is seen as beneficial to the rioter. Known basically as a "2 in 1" result. Commonly used by ACAB supporters and others opposed to police.
by anonymiteriot April 16, 2011
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