Cuantimás
A colloquial and often humorous corruption of the phrase cuanto mas, meaning let alone, much less, or even more so. It is used to suggest that if a certain condition applies to one person or thing, it applies even more strongly to another. (Often associated with rural or uneducated speech patterns in Mexico).
My ex neighbor Jose Luis did not take care of his dog, so we used to feed it. Once, when I asked him why he did not feed it, he answered: Well, if I am skinny myself, cuantimás the dog.
Automatically translated from Spanish
México
República Dominicana