In Bulgarian, as well as other Eastern European languages means
slut or a whore or basically a woman, that would sleep with any man by all chances. A typical kurva dresses in revealing clothes and maybe wears a lot of make-up. A typical kurva has half of her brain filled with ideas how or from whom to
get some dicc, and the other half is probably filled with
nothing. The word 'kurva' itself has 'dick' in it (kur=dick) which explains enough.