Top Definition
Rolling on the floor laughing soda out my nose.
Pronounced phonetically as rɒf'-fɜːl-sɒm or rof-ful-som.
The result of a hilarious comment said at a completely inopportune time, such as in the middle of imbibing a carbonated beverage.
The expression can be used in any situation where an internet comment caused adverse effects irl. Alternative examples include spilling hot soup or coffee all over yourself or peeing a little.
Jesse: My bio professor was talking about conferences. She said she never comes because it's just a bunch of old guys. So I asked her if she knew that that's what she said.
Kiersten: ROFLSOMN! Oh, good God that's painful, brb!
by Arykj July 11, 2008

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