Top Definition
acronym for
Produces Erroneous Numbers Through Incorrect Understanding of Mathematics
"I have a pentium PC"
by Cunjo July 23, 2004
1 more definition
someone who takes long to comprehend simple things
A: I explained to her several times but she couldn't understand shit.
B: hahaha! I told you that girl is a Pentium.
by Flmb June 15, 2015

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