Picture a full container tipping over. Everything inside comes out at once, in one direction, and nobody can put it back. Two things make the picture: it was being held, and then suddenly it was not. What is inside the container can be feeling — grief, joy, thanks — or it can be things you could count, like donations or new songs. Either way the word is telling you about the tipping, not about the amount on its own.
outpouring 可以想成一個裝滿的容器倒下來。裡面的東西一次全出來，往同一個方向，而且收不回去。畫面的重點有兩個：本來是被裝著的，然後突然就不是了。容器裡裝的可能是感情，像悲傷、喜悅、感謝。也可能是數得出來的東西，像捐款或新作品。不管裝的是什麼，這個字要講的是「倒下來」那一刻，不只是「很多」。
From the word’s history
The source gives the word as out- plus pouring, so the picture is in the parts themselves: pouring, and pouring outwards.
來源直接把這個字拆成 out-（往外）加上 pouring（傾倒）。所以那個畫面就寫在字裡：倒，而且是往外倒。
Wiktionary, outpouring, etymology tree supplied in packet (kaikki:3f6f69a190036ae4:1307037747)
登入就可以看每一支怎麼連回核心畫面。