kneelo
n.— «When the bodyboard and the modern shortboard came along, though, people switched over to those, thinning the ranks of kneeboard enthusiasts, or “kneelos,” as they’re affectionately known.» —“Kneeboard surfing championship comes to Steamer Lane this week” Santa Cruz Sentinel (California) Jan. 7, 2007. (source: Double-Tongued Dictionary)