Working odd summer jobs has been 'the sum of' my experience so far. [=has been all the experience I've had so far]
That picture 'sums' him 'up' perfectly. [=that picture perfectly shows what kind of person he is]
“So, you don't want to go because you think it will be boring?” “That just about 'sums it up'.”
(..) Bone Saw is ready! Will the next victim please enter the arena at this time? If he can withstand just three minutes in the cage with Bone Saw McGraw... ...the sum of $ will be paid to... - What's your name, kid? - The Human Spider. The Human Spider? That's it. That's the best you got? - Yeah. - Oh, that sucks. The sum of $ will be paid to... ...the terrifying, the deadly... ...the amazing Spiderman! - My Name's the Human Spider. - I don't care, get out there. - No, he got my name wrong. (..)2002 Spider-Man