make sure you've finished pooing (before we go out)
make sure it has all come out
make sure you don't need to go for a poo again (before we go out)
「ちゃんときばってうんちをだしきって」＝ make sure you've finished pooing (before we go out) / make sure it has all come out / make sure you don't need to go for a poo again (before we go out)
ボキャブラリー
make sure ～ ＝ ちゃんと～をやっといて
poo ＝ ウンチ（名詞）、ウンチを出す（動詞）
出し切って＝ finish pooing
家を出る前に ＝ before we go out / before we leave the house
イギリス 
