"The Holiday Season (to the tune of 'Deck The Halls')" joke

The Holiday Season
(To the tune of "Deck The Halls")
'Tis the season to be greedy!
Fa la la la la, La la la la!
Treat ourselves, forget the needy!
Fa la la la la, La la la la!
Charging gifts with wild abandon!
Fa la la la la, La la la la!
Credit limits not withstandin'!
Fa la la la la, La la la la!
Sing we now the spendthrift's carol!
Fa la la la la, La la la la!
Buying presents by the barrel!
Fa la la la la, La la la la!
Throwing parties, being merry!
Fa la la la la, La la la la!
'Till bills come in January!
Fa la la la la, La La La La!!!