Top Definition
A laugh caused solely by someone else's laughter.
"If I ever zone out of a conversation and miss a joke at which everyone else laughs, I metalul so as to not seem like I wasn't paying attention."
"Even though I hadn't heard the joke that caused the people sitting behind me laugh, I couldn't help metalulling because I was so tired."
by anthropodeus November 18, 2009
5 Words related to metalul

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