bomber n. an old, dilapidated automobile; (hence) a class of such automobiles used with few or no modifications in stock car racing. Etymological Note: This is directly related to the term bomb βan old, dilapidated car,β which goes back to at least the 1950s. There is also a now out-of-fashion sense of bomb βa hot-rod or fast car.β (source: Double-Tongued Dictionary)