Does the phrase “based off of” make you shudder… or shrug?
Jerz > Writing > Grammar and Syntax > The short version: “based off of” is slang. Use “based on” instead. When I first started noticing the phrase “based off of” in student papers, I thought it was just a careless typo. But I’ve noticed it more and more in online writing and in casual speech. (UPDATE — by 2020, I…