A lil sum sum - A small amount of money, like when your wallet is empty and

A small amount of money, like when your wallet is empty and you’re still trying to act cool.

He gave me a lil sum sum, but I still had to skip lunch.

She sent me a lil sum sum, and I used it for a soda and a snack.

I asked for a lil sum sum, and he just gave me a few bucks like it was a joke.