This is when one has a Christmas party, and one snorts alot of cocaine, along with one's friends (and family). Usually as much cocaine for you to consider yourself lucky to be alive and functioning a week after.
Male1: Dude, that Christmas party was off the hook!
Male2: What happened?
Male1: It was a white christmas, you know....
On Christmas day, before the receiver wakes up, you jerk off until you are about to cum. Right before you cum you wake the person up by smacking them in the face with a mistletoe, and start singing, ''White Christmas'' as you cum on their face.
By the time I was done giving her a steamy "White Christmas,'' I was singing to her "And may all your Christmases be white.''
Partaking in the illegal use of narcotics which come in powder form and have a white color, usually cocaine or m-kat. When this act is performed on Christmas day then a white Christmas has been achieved
Last night was crazy we are having a white Christmas
A sexual act of which you have sex with a partner, cum on your partners face in the shape of a beard like Santa Clause, slap him/her in the face on each side to give them "rosy cheeks" and yell "Ho! Ho! Ho!"
I fucked this bitch in the ass last night pulled out and gave her a White Christmas, that's the last present she wants from me.