How do you say this in Spanish (Spain)? Sugar Daddy

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It doesn't have the same exact meaning in English. It seems at times more positive in English: a sugar daddy is an older male (not necessarily extremely old) with money and perhaps even power, who dates younger women and gives them money or buys them gifts (un viejo adinerado amante o protector de una joven.) In Spanish, viejo verde sounds negative, and refers to an old man as creepy and perverted, who chases young women that do not desire him. In U.S. Mexican Spanish, a sugar daddy is a "papichulo." However, I would like to know what is the most common term used in Spain?

Lin 123，viejo verde 这个词有别的意思，就是老色鬼的。但是我在找的意思是干爹的。在Lazarus来说，好像这没有在西班牙通常的说法

有钱的老人或forrado的老人看起来更确定。谢谢你。Viejo con pasta 听起来有点搞笑但是意思还行

I guess "viejo forrado" is the winner. Viejo rico doesn't sound too bad as well but it isn't as informal as viejo forrado. However, I find "viejo con pasta/plata" a bit funny but still doable.

I'm going to wait for a few more responses before closing this question just to see if there are any more slang terms related to this term. I appreciate the help from the both of you. :)