When a lame TV show or cartoon wants to show that someone is intelligent, it will play the e=mc^2 trump card. That is, have that character repeat the famous equation parrot-fashion with no thought to context. Example: I can't believe Tiny Toons Adventures just played the the e=mc^2 trump card.
E=MC^2 TRUMP CARD
Meaning of E=MC^2 TRUMP CARD in English
Slang English vocab. Английский сленговый словарь. 2012