Top Definition
internet slang that only the 'coolest' of kids would use, stands for "almost laughed my fingernails off"
"hey garry, i got an erection in class and had to stand up and give a speech! it was so embarrassing!"

"HAHAHAHAH ALMFO!!!!!!!!!!!!111oneoneshiftoneshifteleven"
by 11danus March 05, 2009
5 Words related to ALMFO

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