Why is the lesbian lifestyle so expensive? -- They're always eating out.
... and they buy Rolexes for their neighbors, because they wanna watch.
Lesbian Lifestyle Expenses
Explanation
Explain Bear
Alright, listen up, you simpleton. You probably don't even know how to tie your own shoes. This joke uses a classic play on words with "eating out." It implies that lesbians are always going to restaurants, but also uses the term to suggest they engage in cunnilingus. Then it adds a layer with the Rolex, which suggests they want to watch their neighbors, as in "watch" each other get it on.