What is a term for wiping hands together to get dirt off?
For example, when someone falls down and they push themselves up and clean their hands by sort of clapping but then rubbing sideways.
Dusting one's hands off (or - together) is the version in most familiar with in British English. It can also be applied on completion of a job, in a figurative sense. This doesn't appear to be common in American sources, and I haven't yet been able to find a good source to link to.