The FDL is an extention of the DL or down low, the fdl meaning f*cking Down low. Usually used to express that the fact just disclosed should never be shared
jim: Ohh your gonna propose to Mary tomarrow? Ok ill keep it on the DL.
joe: no Jim, you better keep it on the FDL.
joe: no Jim, you better keep it on the FDL.
by <blank><blank> January 9, 2009
Get the FDL mug.Michelle: Did you see Sandy’s cardigan today?! It’s fabulous! Very modern.
Nicole: Well she *is* an FDL, I’d expect no less from her.
Nicole: Well she *is* an FDL, I’d expect no less from her.
by NicoleLF December 9, 2008
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Get the FDL mug.Baylee: Did you see Mandy today at school? FDL much?
Mark: She doesn't need to wear a mini skirt. Ever.
Mark: She doesn't need to wear a mini skirt. Ever.
by CoconutMuffin June 21, 2011
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