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1.
The outer flap of skin on the head of an uncircumcised penis; foreskin
My boyfriend's not jewish because he still has his D-lip
by T.I.G. December 28, 2008
 
2.
a pair of incredibly large lips; dsl's (dick sucking lips), but on a man

also referred to in secret as spil-d, if the person is self-conscious about his abnormally large lips
"Hey look its David, check out his d-lips."

"With his d-lips, Dave doesnt even need airbags on his car."
by mrlips October 15, 2009
 
3.
A person who constantly sucks cock.
Hey man i saw my bitch last night and she had great DLips.
by Muff Diver 691993 December 26, 2011