noun. ['ˈfaɪɝˌbəg'] a criminal who illegally sets fire to property.
noun. ['ˈfaɪɝˌbəg'] a true bug: brightly colored bug that can exude a stain.
1. Noun, singular or mass Screen tenants carefully: for example, if the tenant is living in or next to your home, you don't want to rent to a firebug.
