A Slimedog Millionaire / or Slimedog (s.) / Slimedogs (pl.)
1) A druggie with financially well-endowed relatives or friends
Or most commonly -
2) Someone who spends to much money on drugs.
"Fuck man, can you sort me a fat quater?"
"I sold all my weed to you yesterday mother fucker, howd you smoke that shit so fast?"
"Er... I dunno bro I just..."
"You a slimedog millionaire, shit"