Top Definition
When one is sweating like hell, because one feels so embarrassed that there is no way to hide it.
When Joel's schemes were exposed by the CEO in the top management meeting, he was face melting so much that he wished he'd died then and there.
via giphy
by MathPlus March 07, 2017

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The condition in which, due to an extreme exposure to an event of epic Awesomeness, Horror or any other emotion on the more extreme end of the spectrum of emotions, one loses all perception of space and time including (but not limited to) a brief lapse in physical awareness. Such an emotional rush can even override Pain, which in some cases may be the cause of the rush.

In addition to being common among the disciples of Metal and among those who get so stoned that they can't feel certain parts of their bodies (such as their faces), it takes on somewhat of a more literal sense if one happens to plaster a White Phosphorus or Acid Grenade on the face of someone annoying them (some Nazis in a certain famous movie learned this the supernaturally hard way...in any case, you really shouldn't mess with White Phosphorus or dangerous Acids except for in Video Games).

While they writhe in pain, it may be customary to say the hilarious-but-somewhat-stupid phrase below:
Enemy n00b: "ARRGH my head asplode!"

You: "Would you like a Guitar Solo with that Face Melting!?" (proceeds to mime awesome solo on Air Guitar)
by JATOG THE GREEN July 18, 2009

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Visual hallucinations generally induced by good LSD. While tripping, acid users may experience face melting.
Man, the Dude experienced extreme face melting after ingesting the LSD. Must have been good stuff.
by thecarmie February 06, 2015

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What shadow priests do. World of Warcraft FOTM forum posts were always full of casuals asking questions about class re-rolling. One asked if Shadow Priests were any good. The first response, and the two hundred or so responses afterwards confirmed, Shadow Priests melted faces.

This was a time before the game was nerfed, Pandas existed, and the original community left the game.
Person1: Queue up for the arena.
Person2: "But you're specced damage, not heal?!"
Person1: "Yep. I will melt faces.
Person2: "Oh yeah, forgot about face melting."
by Jackson33 March 07, 2017

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