LOL! That was from Johnny Carson's "Carnac The Magnificent". He'd say that to Ed McMahon.
A few of his best:
May a love-starved fruit-fly molest your sister's nectarines.
May a desert weirdo lower his figs into your mother's soup.
May the Shah of Iran seek refuge under your sister's skirt.
May a diseased yak squat in your hot tub.
May you get your first French kiss from a diseased camel.
May your prize bull hate cows.
May a crazy holy man set fire to your nose hair.
May your Perrie water be secretly bottled in Tijuana.
May your only daughter take up with a yak of another faith.
May a crazed lizard unravel your underwear.
May a desert nomad do a desert no-no to your sister.
May a diseased Holy man soil your shelf paper.
May your platform shoes fail you in a camel pasture.
May a weird holy man with a rash play with your face.