- arsonist; incendiary; pyromaniac.
Origin of firebug
Examples from the Web for firebug
Historical Examples of firebug
You know they're after the firebug, an' you better watch out!The Girl Scouts at Sea Crest
One more thing; if the fire had been set, was the firebug still about the place?
And in all these fires the firebug had neither been seen nor traced.
Johnny told of his new task and of his hopes of capturing the firebug.
That firebug has burned school houses, a recreation center, the zoo.
- informal a person who deliberately sets fire to property