Derived from the words blood and pussy. The act of learning that a girl that you are intimate with is on her period.
"Joey we can't have sex tonight, im on my period."
"Marissa, that's ok I like the ocasional blopsy."
by Frank Moroder November 28, 2005
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A blopsy is what you call a girls pussy when you find out the hard way that she is on her rag. Blo- bloody psy- pussy
"How was the sex last night?"
"Good until we stopped due to her blopsy."
by Joe Monaro October 5, 2005
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