A coarse, forceful colloquial term meaning to knock someone down or bring them down. Can also be used figuratively to mean to overwhelm.
酔っ払った相手が暴れ出したので、警備員がぶっ倒すように取り押さえた。
When the drunk started acting violently, security forcibly subdued him and knocked him down.
試合で相手チームをぶっ倒すつもりで練習してきた。
I've been practicing with the intention of crushing the opposing team in the match.
風で古い木の枝がぶっ倒された。
An old tree branch was blown down by the wind.
そんな乱暴な言葉を使うな。人をぶっ倒すなんて許されないよ。
Don't use such violent language. It's not acceptable to talk about knocking someone down.