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
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 October 10, 2008
by Zypher. July 6, 2019
by VelvetDancer October 27, 2009
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 May 21, 2011
by MMFS11 January 18, 2011
by calicat2210 April 15, 2009