>>>He really should try married words.
>>>
>>>Did you like my pregnant pause in response.
>>
>>This brings happy memories from high school... the regular remark, when someone says something stupid was "can't blame him... it's the mother Nature. ...And the cartoonist father."
>>
>>(cartoon as in caricature, not animated movie nor comic strip)
>
>You'll be dismayed to know that it's also a preparatory design, drawing, or painting (as for a fresco), e.g. Leonardo's sketches.

It's also used in stained glass work to refer to the pattern drawing. Or, maybe that's not really any different from what you said.