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to forcefully excrete; to force out (of one's body); to push out; to let out (a fart); to drop (a turd); to give birth to (a baby)
便秘気味でなかなかひり出すことができなかった。
I was somewhat constipated and could not manage to push anything out.
赤ん坊がいきんでようやくひり出した。
The baby strained and finally managed to push it out.
犬が散歩中に草むらでひり出す姿はよく見かける。
It is common to see dogs relieving themselves in the bushes during a walk.