chipmunk
n.— «Turns out “chipmunk” is a colloquial term for a little battery-powered yellow circular saw, explains project leader Kate Drake, who adopted the slang after hearing it while working on a Habitat house in Houston, Texas.» —“Women forge ahead on ‘habitat’” by Valerie Zehl in Endicott Press & Sun-Bulletin (Binghamton, N.Y.) Aug. 30, 2005. (source: Double-Tongued Dictionary)