girls are not allowed to have any sort of interaction with a penis for the full month of december
boy: suck my weiner, wanna diddle around?, lets dry sex!
girl: i cant its decline dick december.
by amanda pedle December 3, 2019
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For people who failed NNN or people who want to challenge themselves further after winning NNN
Weak Mortal: “bro I just failed No Nut November
God: “nah bro you can still do Decline Dick December”
by RealBarackObama November 12, 2020
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