Newman's Own Riff Sauce -- Misattributed? Misremembered? Misappropriated? Riffs you can't source.

My own unplaceable:
‘Your mother was a lizard and your father was an atom (?) bomb.’, which I assumed to have been hurled at Godzilla, but can’t find a source. (ie ‘How do you insult Godzilla?’)

Others you struggle with, or ‘swear’ must be from MST3K or riffed/reffed therein, but just can’t…?

Probably a takeoff on the Frenchmen’s insults from Monty Python and the Holy Grail. (“Your mother was a hamster and your father smelt of elderberries…”)

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