Improvisation memes

My friend asked, "What's that on your arm?" I replied, "Oh, this? I didn't have enough storage on my phone to download Fruit Ninja so I had to improvise a little bit."

when you don't have a phone to play Fruit Ninja and improvise.

My wife cheated on me with my brother.

She didn't have a sister, so I improvised, and now all I have to do is wait nine months for one to come.