سگ (Sag)

"dog / lowlife"

The standalone insult. While 'sag' appears in dozens of compound insults (pedar sag, madar sag, tokhm-e sag), using it alone is a blunt, direct way to call someone subhuman. In Islam, dogs are ritually impure — their saliva nullifies ablution. So calling someone a dog is calling them spiritually contaminated.