When puzzled, or confused, it is used in place of such phrases as "Huh?" or "What?" Unlike grrr, "Grrr?" is not said in an agressive tone, rather a questioning, perplexed tone.
Person 1: (Mumbles something incoherent)
Person 2: Grrr?
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The ultimate mid-life crisis car.
When Carl noticed his receding hairline, the first thing he did was run out to the local Porsche dealership, where he bought a bright red 911 with a rear spoiler the size of a dinig room table.
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Short for Pussy-Unit. Like G-Unit, except that instead of consisting of respected, rappers, it consists of weak, little, wannabe pussies.
(Group of white guys, aka wiggers) Yo, we hardcore!
(Other guy) Ha ah ha! Your just P-Unit!
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