noun. Need I define? I think not.
Real citation: "Producers of Home at the End of the World are so outraged over Colin Farrell's long schlong, they've cut his full-frontal-ness from the pic (ouch) because it's 'too distracting.'"
(A.D. Amoros, "icepack," http://citypaper.net/articles/2004-07-01/ice.shtml)
Made-up citation: "I have a feeling that 'full-frontal-ness'--like 'post-nipslip' and 'butt-cleavage-revealing'--will attract many linguists and other serious scholars to my blog."