doodle

US /ˈduː.dəl/
UK /ˈduː.dəl/
"doodle" picture
1.

a rough drawing made absentmindedly

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He made a quick doodle on the napkin while talking on the phone.
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Her notebook was full of little doodles.
:
scribblesketchdrawingscrawl
1.

to draw or scribble idly

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He tends to doodle during long meetings.
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She was doodling flowers in the margins of her textbook.
:
scribblesketchdrawscrawl