up with

*up with someone

Fig. even with someone; caught up with someone. (*Typically: be ~; catch ~; get ~.) I'm up with the best of them. Are you up with your colleagues on this one?
See also: up
References in classic literature ?
She told him so, and they embraced, and walked on and came up with the schoolmaster.
Our wild guffaws of laughter penetrated even Great-aunt Eliza's deafness, and she glanced up with a startled face.
Mixed up with many striking, thoroughly dramatic physiognomies, it must be confessed that some of these portraits scarcely help at all to explain the power of the players to whom they belonged.
Rachel says, `Avonlea must keep up with the procession, that's what.
I suppose it was the Pye receiver being hung up with profane energy.