Megalovania is song composed by Toby "Radiation" Fox. He's a cool guy. It is used in Earth bound Halloween hack, Home stuck, Mother : CogDis, Under tale. It's a super cool music.
Sans : Do you want to have a bad time?
*Megalovania fade in*
Frisk : OMG It's Megalovania!
Frisk : Ba da da da back da da
Sans : . . .
by Sans fanboi March 18, 2017
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a cursed, cursed song. When you listen to it, it stays in your head forever haunting you forever, even after you die.
PLEASE HELP ME I CANT STOP THINKING ABOUT MEGALOVANIA
by fidget spinner February 7, 2022
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An action by a living being to end someone else’s destructive megalomania, usually by killing them.
(For those who follow UnderTale)
Sans’ Megalovania was a valiant effort to stop Frisk, but in the end he was just too tired.
by The_Awkward_Pulp January 10, 2020
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A large power
Roots:
Megalos- the greek word for large.
Vania- no language roots but could be taken as a parallel to mania* power.

*Mania- the greek word for madness.
Notes:
Megalos can be swapped out with other words to make a different power e.g. arachnovania, Arachnid power. Pyrovania, fire power.
Megalovania surged through him as the adrenaline kicked in.
by Pugza1s May 31, 2022
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A large or great power.
Roots:
Megalos- greek word for large or great.
Vania- no link to language, but could be seen as a parallel to mania* Power.
*Mania- greek word for madness
Megalovania surged through his body as the adrenaline kicked in.
by Pugza1s May 31, 2022
Get the Megalovania mug.