The word to describe the indescribable sinking feeling you get when you see something involving someone you like/love that upsets you. Your breathing usually gets heavy and your heart races.
-"What's up? You look really down."
-- "Oh well it's just, you know that person I like, they pretty much told me it's never gunna happen and now I have major fludniffle."
by Tomlas March 27, 2011
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