2 definitions by Barbie305

The acronym; Mother I'd Like to Fuck.
"Damn, you see that hottie pushing the stroller?"
"Yeah, she's a MILF!"
by Barbie305 December 11, 2007
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In Spanish; Ni puta idea! Which loosely translates to no fucking idea in English.
"What'cha you doing later on, sexy?"
"NPI! I'm still trying to find something to do..."
by Barbie305 December 9, 2007
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