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The word rsmf is an abbreviation for Rune Scape Mother Fucker. Only the hardest core of runescape players use this term. If you think you are hard core enough, just replace the word "runescape" with "rsmf", and feel the power...
Example 1:
Person1: hey, hey, hey!!!
Person2: what???!
Person1: rsmf
Person2: omg, fag...
Example 2:
Person1: teacher?
Teacher: what?
Person1: rsmf
Teacher: what the fuck??!
by joshua arthur September 15, 2006
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