if you cant find it, grind it

If you cant find it, grind it is an automotive term that means if you cant find the gear you want, you should just move it to any gear you can find, which will cause it to make a grinding sound. This is used primarily as a literal term for vehicles and motorcycles that have a manual transmission. Sometimes you arent able to find the gear quickly, but in order to go, you need to put it in any gear; this may cause a grinding sound, but it will get you from point A to point B.