引く (ひく, hiku) is a basic Japanese word that means “draw/pull”, as in “ロープを引く (rōpu wo hiku; pull a rope)”. However, it is also used as a slang term meaning “be put off by something/someone”, e.g. when you feel like drawing back because you find something/someone cringey and off-putting. For instance, you would 引く (hiku) when someone says some disgusting sexual jokes. If you have watched “The Office (UK)”, the main character David Brent starred by Ricky Gervais is an epitome of the person who makes others hiku (be put off).
ドン引き(どんびき, donbiki) is an extreme case of 引く i.e., to find something very disgusting and gross. It is often used as “ドン引きする”, as in “彼の発言にドン引きした” means “I did donbiki (was really put off) by what he said.”
I was really put off when my friend said he’s riding a bike that he stole.
引いた is a past form of 引く
I was extremely put off when my girlfriend s*ht her pants.
Synonyms in English: be put off, feel cringy, be repelled
Related words and phrases: ドン引き