crazy as a betsy bug
Insane. Don't leave me alone with Uncle Stu, he's crazy as a betsy bug!
(as) useless as tits on a boar hog
vulgar slang Ineffectual; pointless. Hey, thanks for the broken wrench—it's as useless as tits on a boar hog.
tits on a boar hog
vulgar slang A phrase used to emphasize that something is unnecessary or unhelpful. Hey, thanks for the broken wrench—it's about as useful as tits on a boar hog. Her advice is always useless as tits on a boar hog—don't pay her any attention.
*crazy as a betsy bug
and *crazy as a peach-orchard boar; *crazy as a loonRur. acting as if insane. (*Also: as ~.) Tom: Susan says she's really the Queen of England. Bill: She's crazy as a betsy bug. Jill: David's a little eccentric, isn't he? Jane: Crazy as a loon, I'd say. What's wrong with Jim? He's acting as crazy as a peach-orchard boar.