To be naturally extremley well endowed with a very large penis, or geneticly having a lineage of croatian ancestry.
"Im half cro, from the waste down".
This mans penis is twice the size of an african american penis.
Nah its cool G , she just got hit up with my cro-cock!
Man its like throwing a hot dog down a hallway, what the fuck..Yo I heard she got hit up by that cro-cock.