when a girl is dirty...like really dirty...like..mad mad dirty...
it can also allude to the craziness of a girl's dirt level...crazy dirty or coocoo dirty as in 'coocoo for coco-puffs'
also, a substitute for 'too' as in 'too too dirty'
"yo dog..I'm like 15 beers deep and that broad is still dirty....like coo coo dirty!"
"man..that broad's level of dirtiness blows my mind..she's coo coo dirty"