The product of applying too much catsup to a burger or sandwich. When pressing down on the bread it jets the excess catsup out all over the plate and maybe yourself, thus looking like the sandwich has quiffed.
"Oh shit son! This burger just pulled a cat flappy!"
by Lunchbox Surpise April 16, 2007
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Singer Brian Johnson from AC/DC. Called this because he wears a stupid old man's flappy cap.
by K40 January 14, 2004
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Rick: "duuuude, how was that chick lastnight?"

Nick: "aww man, you should have seen it, she had the gnarliest beefy flappy woof woof's i've ever seen."

Rick: "sux for you."
by Nick May 8, 2005
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Tits with neither shape nor purpose. As opposed to the universally accepted shaped firm tits LFBTs simply hang down often gravitating to the sites of the body. LFBTs are usually accompanied by large areolas and frequently spoted in the direct vacinity of fat lasses or in extream cases of gluttony fat men.
But when we got down to it I found she had LFBTs (Little Flappy Bitch Tits)
Mate LFBTs!!!!
Keep eating like that your going to end up with LFBTs love
by dannydierisatwat February 5, 2010
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When someone talks so much everything that they talk is shit and they fuck their mother
Hey bob” “yea” “shut your flappy gum ass mother fucker up”
by Ferelliekos September 23, 2020
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