1 definition by 31216ChiCle
Originating in Cleveland, Ohio, "On Cuh" is a satirical way to put your word on something like phrases like "On God" and "On Moms" would. "Cuh" could mean anything so using it makes the subject not so serious and makes it more of a joke than serious matter when you're swearing on something.
by 31216ChiCle December 11, 2018