I Need to Hit the Head - When you fake a song to cover up the fact that you're just g

When you fake a song to cover up the fact that you're just going to pee and you're too proud to admit it.

I faked a song because I didn't wanna say I was going to the bathroom.

I hit the head and sang a fake song to look cool.

I made up a jingle just to cover that I needed to pee.