Top Definition
A burn or insult in its most harsh aspect. Reserved and used for making fun of and/or reprimanding anyone who deserves such a remark (i.e: pedophiles...) Can also be used as a threat. Used as a noun or verb. Also see Mjolnir}
a) You're dating a 14 year old and you're 18??? I'm going to mjolnir slam your ass.

b) That was such an mjolnir slam that you should just leave, don't even try to retaliate.

c) You seem to be in need of an mjolnir slam, son.
by ironchoad October 28, 2006

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