Top Definition
It is an acronym. You Set Off My Funny Receptors. Similar to "lol" or "rofl."
Bob: Two potatoes are in an oven, one says hey, the other says "holy crap it's a talking potato"
Jill: Hahaha. Ysomfr.
by The Uberness June 04, 2007
7 Words related to Ysomfr

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