1. A modified car. Also see street rod .
2. To drive a vehicle hard.
3. A connecting rod . See connecting rod , boxed rod , and throwing a rod .
4. To clean out a radiator by passing a rod through the lines. See rodding the radiator .
5. A thin bar. See boxed rod , metering rod , panhard rod , push rod , radius rods , tie rod , TV rod , and arc welding .