adj. Embarrassing and bold in an exposed tushie kind of way.
Real citation: "So, final tally: LAMB has one mega-hit, one okay song, three stillborns, and seven full-fledged embarrassments. For Stefani, fashion has officially come first; to her credit, these songs are the slickest, shiniest, bum-flappiest failures of the year."
(Nick Sylvester, "Gwen Stefani: Love Angel Music Baby," Nov. 24, 2004, http://www.pitchforkmedia.com/record-reviews/s/stefani_gwen/love-angel-music-baby.shtml)
Made-up citation: "I don't usually contradict my citations, but the Gwen Stefani CD is extremely swell and non-bum-flappy in my opinion. Harumph."