To moonlight as a taxi without licence and in a private car, “literally to bomb”. The driver is called бомбила.
По-любому же таксерская тачка скорее всего застрахована по каске, это не бомбила, а именно таксёр.
Anyway, the cab should be fully insured, it is not a private driver, but a licensed cab.
(Андрюха @ ЖЖ, 05/2010)