Onomatopoeic slang for running fasteners on with an impact wrench and stopping when the hammering sounds right, used as a noun, a verb and a mock torque value. It signals an assembly done by feel, which may be fine for a trailer fender and a real problem on wheel studs, cylinder heads, flanges or anything with a gasket. Mechanics use it as a joke and as an accusation.
What's the spec on the axle nut? Book says one-eighty, but the last guy clearly just went ugga dugga on it.
Also heard as
- ugga-dugga'd
- ugga duggas
Related terms
Rattle gun
Shop nickname for an impact wrench, from the hammering racket it makes running fasteners on and off.
Gutentight
Mock-German torque spec meaning tightened by feel until it seems good and tight, with no wrench reading.
Click wrench
Shop name for an adjustable torque wrench that clicks and briefly gives way when the set torque is reached.