Giving a girl a swirly while fucking her doggystyle in the bathroom
I totally gave that sorority slut a firly at the kegger last night.
by Supa K May 14, 2010
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the ugliest grossest type of ignorant disgusting people to ever roam this earth.
ROSCOE: whos that guy looking at the tulips?
CORNELIOUS: i dont know but he is such a firlie.
by lightbulbpants101 October 6, 2011
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A really athletic person, always going above and beyond. Extremely fit.
Guy: Did you see that girl? She's so fit! How does she do it all?!

Guy: She's a Firlie. They are the fittest people i know.
by akf.2 October 18, 2016
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When you feel something for someone but you don’t really know what you are feeling.
He is my firli
by Brujilliza August 13, 2019
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