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A strategy used by men looking to pick up women usually at a bar or social gathering, consisting of him either pretending to be alone or actually being alone as a strategic way of having women who notice he is by himself to approach him.
"Check this out guys, i'm gonna try The Lonely Man and see if i get lucky". -Pretending

"F*ck it, im just gonna go out alone tonight and try The Lonely Man". -Actually alone
by JensenR September 01, 2013