It's from Spongebob. The Salty Spitoon is like this tough guy club and they make you say something "tough" you did to get in. They have a lot of pics like this for example:
I'll have you know that I read Bridge to Terabithia and only cried for twenty minutes, etc.
I'll have you know that I read Bridge to Terabithia and only cried for twenty minutes, etc.