Apart from the Spelling?
Fel-osophy
Because warlocks have hollow weenies!
With a warlock.
Because he's got a hollow-weenie.
Because he had a Halloweenie! (Hollow-weenie)
Harry Frotteur
To prevent bat breath!
BROOM BROOM BROOOOOOOM
They get broomatism!
Because 50% of the taste is in the smell.
A spatula. Maybe she'll be more responsible making dinner than making babies.
The Necronomnomnomicon.
You're a lizard Harry!
On St Patty's day everyone wants to be Irish.
A tire
AcCOUNTing This joke must be on a popsicle stick somewhere.
Hiss-tory!