Pretty much a another name for an erection. Caused by women and tv/film/media.
"Dude listning to her voice gave me a man reaction"
by glaufag April 4, 2009
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Delayed Reaction Man is one of the best superheros ever.

...However, he isn't that reliable for being on time to save the day.
Person One: *is about to be stabbed by a random stranger* Help me Delayed Reaction Man!

20 minutes later....

*Person One is left on the ground bleeidng in its own blood*
DRM: Have no fear! I'm here to save the day!
by Nion_lead June 11, 2008
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