Your first,second, or third cousin's child, or, as a literal description of a person's much younger cousin.
How'm I gonna hang out with my baby cousin? We're from completely different generations.
A skeezer is a gold digger, a ho, a female con artist (figuratively or literally), or in general, a woman with low morals who is out to extract money from others through shady means.
That skeezer tried to jack my watch, my ring, my wallet, and my gun!