An accent aquired by many northern new mexicans, causing vowels to become elongated and exaggerated. Sounding similar to an accent aquirred by someone who primarily speaks spanish...however the moch accent is done in english. this can also be closely related to spanglish, and poorly formulated sentences.
"Eeee Bro! Mi ruca (my girlfriend) waaas home all day an' she deedn't (didn't) even do nawthing (nothing)." --notice their are spanish words, double negatives and elongated vowels. this is the sounds of moch.