It's one of those sentences where it's ambiguous which previous noun/pronoun the possessive refers back to.
Po-Tay-Toes! Boil 'em, freeze 'em, stick 'em in your ass.
I bet you prefer the fresh fish, raw and wriggling up in there, donchya? 😛Po-Tay-Toes! Boil 'em, freeze 'em, stick 'em in your ass.