It's the phrase that is uniting a city pumped about another chance at a Super Bowl appearance.
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Fans from all over the county have been flocking to the Eagles Pro Shop at Lincoln Financial Field to get their hands on the newest gear.
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"I drove all the way down thinking that all the Rally Houses would be sold out already. This is home plate and I thought I'd be able to get it here," said Joe Saracino of Holland, Pennsylvania.
A family from North Carolina had more luck.
"I heard a lady on the phone saying she came here just to get this hat for her son, and I felt bad for her and said, 'you can have one of my hats,'" explained Peggy Monroe of Fayetteville, North Carolina.
That generosity, she says, is a Philly thing. Let's take it back to the song by the Bacon Brothers released in November.
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"I remember I was talking to somebody who wasn't from Philadelphia and went, 'Oh is that what you do, that's weird or interesting.' And my response was, 'Well, it's a Philly thing,'" said actor Kevin Bacon.
SEE ALSO: Kevin Bacon says 'Philly Thing' seeks to explain his hometown
The phrase is unapologetic, untamed and screams confidence and pride -- a perfect representation of Philadelphia and Eagles fans.
"The reason people are out there tailgating in the parking lot at the crack of dawn, if you know, you know. It's just a Philly thing," said Eric Emanuele of Clinton, NJ
The pro shop expects another big shipment of Eagles gear Tuesday and Wednesday.
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