If you forget to turn on your pacemaker, your heart will die.
describes someone's personality: absent minded, someone who always leaves their umbrella on the train.
an end-of-the-year party. Sort of like new year's eve parties, but they happen all throughout the last half of December.
|忙||busy||NO TIME LEFT|
|忘||forget||BOTTOM OF YOUR HEART|
Both kanji are"heart + dying," but, in busy (忙). . .the heart is on the LEFT, because you're so busy you have no time LEFT.
With forget(忘), the heart is on the bottom, because you are apologizing to your boss FROM THE BOTTOM OF YOUR heart for forgetting to bring the report to the big meeting.
spaced-out, forgetful, absent-minded
忘れっぽい ぼんやりしてる 忘れる 思い出すせない