an unconscious tic in the arm during sleep; necessitates partner to sleep in a different bed.

see also: jimmy leg
You can have a jimmy arm?

Like you wouldn't BELIEVE!
by austin martino May 24, 2005
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An individual who can reach the pillow from across the room from the bed.
Oh, man. We got us Jimmy long arms over here.
by MstrNealoth February 4, 2018
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