Any alcoholic beverage consumed inside a moving
automobile, but the term is used almost exclusively for beer (or perhaps
malt liquor). The beverage is consumed by driver, passenger, or both. This activity is illegal in many states due to
open container laws, but is still widely practiced and enjoyed!
"Since your sorry ass is two hours late, we won't have time to
tailgate before the concert. Let's pick up some
road sodas at the next
liquor store."