when a guy's pants are so tight you can see his underwear lines.
I got a face full of manty lines today as I was walking up the crowded subway steps.
by Stephanie Ellis September 11, 2005
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a man who's tighty whities are so tight that the lines are visible through his sweats; pantylines for men.
girl 1: i saw your crush last night!!
girl 2: OMG how did he look??
girl 1: i mean he had mantylines soo...
by swichee November 14, 2011
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