Sugar Cubby
An older person who is dating someone younger who pays for everything.
"That cougar has a sugar cubby, he pays for everything!"
Sugar Cubbie
A sugar cubbie is a clean cut, good looking male under the age of 30, who has a healthy bank account that he uses to spoil his women. Sugar cubbies are often sought out by attractive women in their 30s, often referred to as pumas, not quite old enough to be a cougar, but a cougar in training.
She found herself the best of both worlds in dating that sugar cubbie. He always picks up the tab for dinner AND is still young enough to keep up with her in the sack.