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Used to define someone of a weak disposition during a screening of a film. Synonymous with vomit.
Named for a during a really gripping moment during "127 Hours" where James Franco was hacking away and this wee Belfast girl pops in with "Excuse me, if Jim Brady's wife is in here could she please come outside, he's being rather ill you know...".

Henceforth similar moments in film are described in the Belfast area as being a "Jim Brady Moment."
by shaunomacx January 11, 2011
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