stack up
https://www.youtube.com/watch?v=7cgRwDkP6vk
stack up
1. (or stack something up) form or cause to form a large quantity; build up:
〈車が〉渋滞する; 〖進行形で〗〈物などが〉増え続ける
e.g. cars stack up behind every bus, while passengers stand in line to pay fares.
2. North American informal measure up; compare:
｟くだけて｠ «…と» 比べられる, «…に» 太刀打ちできる, 匹敵する «against, to» (!通例howの疑問文で)
e.g. our rural schools stack up well against their urban counterparts.
usually with negative make sense; correspond to reality:
〖通例否定文で〗つじつまが合う, もっともらしい
e.g. to blame the debacle on the antics of a rogue trader is not credible—it doesn't stack up.
#phrasal_verb