I think you should submit spendaholic as a new word. Heck, if Sarah Palin can get refudiate made into an actual word, surely a gentlemen of your stature can get spendaholic.
Side note, my iPad tries to auto correct spendaholic to spendaholica.
That is a deep psychosis, yes..............
I will contact Webster and submit the word. We should be able to hear the laughter even here.