"Send himself up"?

Up where?

I believe that's another example of English being a foreign language, unless it's used in Anglo-American English (a language I generally know pretty well, but sometimes colloquialisms some Anglo-Americans use are unfamiliar to me, as I'm sure some African American colloquialisms are unfamilar to some people who aren't Black Americans).

I'd appreciate you letting me know what "Send himself up" means.

Thanks.