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'.”
(..) you know, shouldn't y'all be considering treasury bonds or utility stocks? in the late seventies banking wasn't a job you went into to make large sums of money. It was a fucking snooze! Filled with losers! Like selling insurance, or.... accounting And if banking was boring... (..)2015 The Big Short