Warpath \War"path`\, n. The route taken by a party of Indians going on a warlike expedition. --Schoolcraft.
{On the warpath}, on a hostile expedition; hence, colloquially, about to attack a person or measure.
(Kellogg says it has research proving that claim but declines to disclose it.) "Kellogg is spending like it's on the warpath," says analyst John McMillin, who follows the cereal industry for Prudential Securities.
Dukakis is about six weeks behind the vice president, who has been on the television warpath with attack ads since midsummer.
MacDonald also said Senate investigators compared him with Geronimo, the Apache medicine man who remained on the warpath until the early 1900s.