2 definitions by *plays piano gayly*

Heartstopper is what you feel in your chest when you see or read Nick and Charlie together (on-screen or in the books).

This phrase is commonly worded as "my heart stopped" or "that warmed my heart".
Person 1: "OMG LOOK AT HOW NICK HUGS CHARLIE"
Person 2: "THIS JUST STOPPED MY HEART AND MADE IT DO A LOOPTY LOOP IN MY CHEST"

Person 1: "We are too gay for this heartstopper shit"
by *plays piano gayly* May 26, 2022
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