sweepspear
n.— «Its styling, says GM interior design chief Dave Lyon, will feature modern interpretations of the Buick portholes (or “ventiports” as they were called in the “50s) and the “sweepspear,” the asymmetric v-shaped profile accent found on many of the brand’s cars in the ’50s and ’60s.» —“Invicta or LaCrosse, what should Buick call its new Epsilon?” by Todd Lassa Motor Trend: Car News Blog Apr. 14, 2008. (source: Double-Tongued Dictionary)