strike in the head
cizañero
cloche
coclaina
cocolo
cocotazo
cojones
balls, courage, to have valor
colegio
public school (only elementary school) and private school (from elementary to high school)
colgado
colmo
comadre
comay
comegofio
a silly person, goofball
comemierda
to be clueless, a fool
compay
a friend
conchole
concholete
condenado
confianzú
coño
blunt word used by Dominicans that basically can mean anything you want it to mean depending on the context: rage, surprise, happiness, confusion, pain