While the undies may not be so provocative, Gaga makes up for it with her seemingly erotic dance moves.
Guns, fists, belt whippings—and a total, unabashed lack of undies.
Another explains she won't show her "vag," but could be charmed "into my undies" should a player win a game.
1906, diminutive euphemistic abbreviation for women's underwear (or undergarments).
To impress very little; be quite insignificant; be less than overwhelming: Her performance rather underwhelmed the audience (1956+)