ag cur faobhair = edging something. faobhar a chur ar m'fhiacla. = Set my teeth on edge Chuir an scriobadh faobhar ar m'fhiacla. = The scraping set my teeth on edge.
duine faobharach = a sharp-spoken, "sudden" person. Duine obann. = a quick-tempered person. Duine a mbíonn faobhar ar a theanga. Duine géar. = a keen minded man. = quick to see things.
Faobhar a chur ar fhiacla duine = Put one's teeth on edge. Chuir scríobadh an bharra chimilte faobhar ar m'fiacla. [Is dóigh liom gur airigheas "Nimh a chur im fhiacla."]