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another name for semen or sperm
the magic ingredient to the power puff girls was chemical x.
by sum otha guy March 24, 2007
A complete awkward moment/situation/person in the past that you want to erase from your mind because of the sheer embarrassment of it all.
"He is such a Chemical X for me."
"I was at the shop and I saw ____, it was like Chemical X!"
by Erialcx February 04, 2010