Top definition
When you're brain begins to wander off and alert you.
Michael: so why did you comment me?
Jazmine: oh i had a brain diddle

Tony: is it ok if i say hi to her?
Jazmine: well did you get a brain diddle?

Sara: did you get all of that?
Jazmine: wait i'm getting a brain diddle.
by jaaaazrose February 28, 2009
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