more about Bombinettes
A BOMBINETTE is also a dose of heroin, strong enough to kick literature out of the user's brain, but not enough to hiroshima the whole system down... It explains the diminutive.
It can be a car too, a regular car changed into a bolid.
And of course, "une bombe" is a very beautiful woman, a sex-bomb. I've never heard of sex-bombinettes.