pit lizard
n.— «The only thing Stewart enjoys more than a race car and a fight, it seems, is women. Over the course of a race weekend, he’s approached by dozens of them, each more long-legged, doe-eyed and blond than the last. Inside the NASCAR bubble, these gals are called “pit lizards,” and they prowl the inner sanctum at tracks throughout the year.» —“Where There’s Smoke…“ by Mike Guy Rolling Stone Sept. 4, 2008. (source: Double-Tongued Dictionary)
Further reading
juicy noun. A person who illicitly carries alcohol in a water bottle. «Gwen Alexander, who’s been working at the Astoria pool for two years, confirms there haven’t been any issues with fighting this year but she said rule enforcement is...
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Probably modelled after “lot lizard”, a truck stop prostitute. There’s a lot of crossover between trucking and NASCAR culture.