Episode Titles: Donation

 You are viewing a list of 1 The Big Bang Theory episode featuring "Donation" in their title.

  • The Donation Oscillation

    The Donation Oscillation
    Season 12, Episode 15 - Aired February 7, 2019

    Penny tries to seduce an abstaining Leonard to ruin his “donation” for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali’s canceled bachelor party into a couple’s trip aboard the “vomit comet”.