To mark 10 years on YouTube, Laurence Brown, British by birth and baffled by “realty” signs ever since he moved to America, decided to celebrate the best way he knows: by getting hilariously confused by American English.

Why do Americans say “gotten,” and why does “sherbet” involve dairy over here? From “zipper” to “jaywalking,” “grifter” to “oftentimes,” it’s a whirlwind tour of linguistic WTFs with historical twists that reveal many so-called Americanisms are actually English throwbacks that never got the memo to leave.

Watch now and laugh your aluminum off!