A bolt pressed into the hub on an axle, with the threaded end out to receive a lug nut.

plural of lug bolt

plural of big lug

plural of lug nut

plural of chug-a-lug

plural of launch lug

(model rocketry) A small vertical tube affixed to the side of a model rocket, which engages with a launch rod to stabilize the rocket's trajectory in its first few feet of flight.

simple past tense and past participle of chug-a-lug