Piedra, papel, tijera, lagarto, Spock

Así se juega...

Sexo y amistad

Raj: You can't ruin friendship with sex. That's like trying to ruin ice cream with chocolate sprinkles.

The Big Bang Theory 5x01 ~ The Skank Reflex Analysis

Fútbol

Sheldon: I grew up in Texas. Football is ubiquitous in Texas. There's pro football, college football, high school football, peewee football. In fact, every form of football except the original, European football, which most Texans believe to be a Commie plot.

The Big Bang Theory 3x06 ~ The Cornhusker Vortex

Causa-Efecto...

Penny: Te devolveré esto en cuanto pueda.

Sheldon: Pues claro que sí. Es imposible que me pagues antes de que puedas. Asumiendo que vives en un continuo espacio-tiempo de causalidad lineal.

The Big Bang Theory 2x14 ~ The Financial Permeability

Disponibilidad

Leslie: Just so we're clear, you understand that me hanging back to practice with you is a pretext for letting you know that I'm sexually available.

The Big Bang Theory 1x05 ~ The Hamburger Postulate

Superman

Penny: A marathon? Wow, how many Superman movies are there?

Sheldon: You're kidding, right?

The Big Bang Theory 1x02 ~ The Big Bran Hypothesis