Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
1957, from no + frills. The expression no thrills meaning "without extra flourishes or ornamentation" is in use from 1870s; the original notion probably is of plain clothing.\n\nMan with no frills (American) a plain person, a man without culture or refinement. An amiable term to express a vulgar fellow.
[Albert Barrere and Charles G. Leland, "A Dictionary of Slang, Jargon & Cant," Ballantyne Press, 1890]
WordNet
adj. characterized by the absence of inessential features; "he got a no-frills introduction to the job" [syn: no-frills(a)]
Usage examples of "no-frills".
I am a standard, no-frills Earthling, but Goodney, in his white suit, suntan and sliding blond hair, stood out like a pink elephant among the sin-sick funeral directors lurking and cruising against the blood-coloured walls.