November 19, 2015 12:45 PM EST

When she found out she was pregnant, Alexa Goolsby decided to break the news to her parents using a game she learned from Jimmy Fallon: the Whisper Challenge. (It basically involves one person wearing noise-canceling headphones trying to guess what the other person is saying to them.)

Goolsby says “I’m pregnant” and her mom figures it out quickly. It’s her dad who struggles to make out the words. Goolsby’s partner then starts telling him, “you’re going to be a grandfather.” Once the grandpa-to-be finally figures it out, he pauses for a moment as the the words sink in. Then he just goes totally nuts.

Read next: Watch a 6-Year-Old Boy Cry Tears of Joy When His Mom Tells Him She’s Pregnant

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