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The effect one has when they see something that looks so good and awesome, they must have it, taste it, see it, etc. The moment they do, they are disappointed eventually. Based off of the movie Sucker Punch.
Ohhh that candy looks so good!!

A while later...

Ahh this candy sucks! I hate the 'Sucker Punch' effect!
by Zenken May 21, 2011