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Minimal Possible Investment guy.

An MPI guy is a player who is only interested in stringing you along with the minimal amount of effort required to keep your hopes up in order to stroke his own ego. If you have an MPI guy in your life, it is time to get ruthless and cut him off, because he is stopping you from meeting the world of guys who actually have potential. See that MPI guy for what he is, and kick his ass to the curb so you have more room in your life for something special to come along.
Suzie began to notice that, throughout their relationship, Alex was just another MPI guy because he never shows genuine interest in her, and he only wants sex.
by UD Contributor 1984 January 21, 2018
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