Kitteringham is a type of ham that makes a kitter sound when you throw it against a wall. a tradition practised by Californians.
The last name originated from a long line of butchers who specially made "Kittering Hams," thus creating the Kitteringham family.
The nickname "Kitteringham" may also refer to a large bunch of crazy people who are somewhat wanna-be gangsters, but not quite.
Kittering Hams tastes gross, man!
Oh, look, it's a bunch of Kitteringhams. We should totally