from Wiktionary, Creative Commons Attribution/Share-Alike License.
- verb To
focusone's aim; to zoom inand centeron something.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- verb direct onto a point or target, especially by automatic navigational aids
- verb adjust (as by firing under test conditions) the zero of (a gun)
from Wiktionary, Creative Commons Attribution/Share-Alike License
The phrase possibly comes from adjusting a sighting mechanism of a firearm to minimise the discrepancy between where the sight points and where a bullet lands on a target.
Sorry, no example sentences found.