to keep several objects in motion in the air at the same time by alternately tossing and catching them perform the tricks of a juggler

to engage in manipulation, esp in order to achieve a desired end

to toss and catch (things) in the manner of a juggler

to deal with (several activities) at the same time through skilful organization

to manipulate (e.g. facts or figures), esp in order to achieve a desired end

to hold or balance (something) precariously