cerebral constipation
The act of completely forgetting the name of an actor, song, book, movie or name of anything that one is generally familiar with. The "on-the-tip-of-my-tongue" phenomenon. The 'mind-burp' is the moment of relief, the actual recall. i.e., "Aha! I got it! I remember!"
The movie buff had a bad case of "cerebral constipation" as he choked under pressure when the cute waitress asked him for the name of his favorite romantic comedy.