A ponce, is a male figure who lives off the earnings of a female figure. For example, the term originally means "a man who lives off of his prostitute's earnings." This term can be applied more normally to a man who doesn't have enough money to pay for himself, and then uses a female's money to help him get by.
You're such a ponce, dude.
There's some real poncely behavior going on here.
I'm going to need to be a ponce today.