Is there a more formal way to say 氆氇?
For example:
你的衣服上掉了饼干渣,氆氇一下。
There are some biscuit crumbs on your shirt, get them off.
氆氇(pǔlu 〖藏pulu〗)是藏族人民手工生产的一种毛织品,可以做衣服、床毯等,举行仪礼时也作为礼物赠人。
I don't think native speakers would say this word. "get them of" simply means 弄掉它们.
给/把 construction with 掉 as the resulting "disposal" condition is probably the most natural yet neutral way to express this. E.g. 给它们抖掉。
You may want to also refer to the action on the clothes rather than on the crumbs, which would allow a more specific direct object. E.g. 把衣服抖一下。