请问Rollerblade是什么意思啊？

[ 'rəuləbleid ] v. 滑旱冰(用旱冰鞋滑)

This encouraged me, but the theory was blown by such masculine nouns as murder, toothache, and Rollerblade.
这一理论一度鼓励了我，却很快被诸如凶杀、牙疼和滚轴刀刃等阳性此所击破。