Spending your time and money for your own improvement, future success or good time / enjoyment. As opposed to spending your money and / or time trying to please people especially people you don't like.
" I can't believe it! I just blew her rent money hosting a big dinner party for my frenemies."
"Yeah it sounds like you don't know how to invest in yourself. "
When you set up two of your friends to make a cute couple so you can prove to your haters that you are a real love guru but then that couple proceeds to third wheel you every time you hang with them. This conflicts your emotions as you don't know whether to be happy for them or mad because they don't pay attention to you. So instead, you joke around about third wheeling however deep down, you are hurting. Common with people named Tasnia.
When your smoking a blunt and it down to the stinger.... you take your hit and some smoke gets in one eye so you can’t see outta it. You have fetty wapped yourself.