一杯一杯

いっぱいいっぱい

to the limit; to the fullest extent; absolutely the limit; the best one can do

Also written 一杯々々

Meaning

adj-naadvn
to the limit; to the fullest extent; absolutely the limit; the best one can do; breaking even
adj-naadvn
one cup after another; cup by cup

Example sentences

子供の世話で一杯一杯だったんだ。

I had my hands full taking care of my own children.