When you don't know what gift to buy someone at
Christmas time, so instead you just give them some money so they can buy something
themself. Christmas cash is also a song by
the hit youtuber named Fred.
ex 1:
Theodore: Oh crap dude, I don't know what to buy my girlfriend for a
Christmas present!
Samuel: Just get her some Christmas cash.
ex. 2:
Fred: Caaaash!
Cash money! Money! All I really want is caaaash! Cash money!