Couldn't find any chords that sounded right, so I gave it a go working them out myself. 
These are the chords I use, if you spot any errors, please point them out :)

EbI (x43121@3)don't want a lot for Christmas
Eb7There (x32310@4)is just one thing I need
AbI (xx1114@1)don't care about the presents
AbmUnderneath (133111@4)the Christmas tree
Eb (x43121@3)                             G7I (320001@1)just want you for my own
Cm (x3101x@1)                                 BbmMore (x13321@1)than you could ever know
Ab (xx1114@1)              AbmEvery (133111@4)night I study
Cm (x3101x@1)              Bb (x1333x@1)                  EbCm  
Ab  Bb
How to get a Christmas f*ck buddy

EbI (x43121@3)don't want a lot for Christmas
Eb7I (x32310@4)just want a girl for free
       Ab(And (xx1114@1)I) don't care about the presents
AbmI (133111@4)just want a shagging spree
EbI (x43121@3)don't need to hang my stocking
Eb7I (x32310@4)just wanna put my___in
AbSanta (xx1114@1)Claus won't make me happy
AbmSorry (133111@4)I dont swing that way
Eb (x43121@3)                      G7I (320001@1)just want a little tug
Cm (x3101x@1)                                  BbmUnderneath (x13321@1)the Christmas rug
Ab (xx1114@1)             AbmEvery (133111@4)night I study
Cm (x3101x@1)              Bb (x1333x@1)                   Eb (x43121@3)    CmHow (x3101x@1)to get a Christmas fuck buddy
Ab (xx1114@1)                    BbAnd (x1333x@1)its you baby

EbI (x43121@3)won't ask for much this Christmas
Eb7All (x32310@4)I ask for starts with blow (blowjob)
AbI (xx1114@1)am gonna keep on waiting
AbmUnderneath (133111@4)the mistletoe
EbOn (x43121@3)my Christmas list Ive written
Eb7All (x32310@4)the girls I want to bed
AbFrom (xx1114@1)New Zealand back to Britain
AbmComment (133111@4)on my youtube thread?
Eb (x43121@3)                                     G7I (320001@1)wanna ride you like a rodeo
Cm (x3101x@1)                                 BbmMore (x13321@1)than you could ever know
Ab (xx1114@1)             AbmEvery (133111@4)night I study
Cm (x3101x@1)              Bb (x1333x@1)                  Eb (x43121@3)     Cm (x3101x@1)
Ab  Bb
How to get a Christmas fuck buddy
GAnd (320003@1)when it gets to Christmas eve
                            CmAnd (x3101x@1)youve got no nookie (nookie, nookie, nookie)
              G (320003@1)                                                               
                            CmHow (x3101x@1)the hell do you think youre gonna get through the Christmas holidays?
Abm (133111@4)                                     Eb (x43121@3)    CmYcant (x3101x@1)sit around like another slacker
              Ab (xx1114@1)                                            BbYa (x1333x@1)need someone to pull your Christmas cracker

Eb  Eb7

AbHey (xx1114@1)Stefan, it's about this time last year when my dad went off on a cold-
AbmYeah, (133111@4)yeah. Shut the f*ck up. It's Christmas.

Eb (x43121@3)                              G7I (320001@1)just want a MILF from thirty (not sure about the lyrics for this line)
Cm (x3101x@1)                                    BbmCome (x13321@1)and let me stuff your turkey
Ab (xx1114@1)              AbmEvery (133111@4)night I study
Cm (x3101x@1)             Bb (x1333x@1)                  EbHow (x43121@3)to get a Christmas f*ck buddy