acronym for "I just shat myself." used when something really awesome or funny happens, warranting the use of a stronger phrase than "rofl" or "omgwtfbbq"
by Nathan Frey/Robert Hawkins November 12, 2004
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Person one: I just slid my truck into a tree and caved in the whole bedside on trail 69
Person two: IJSM. More damage means more character
Person one: I just slid my truck into a tree and caved in the whole bedside on trail 69
Person two: IJSM. More damage means more character
by Shitbox 69 February 8, 2021
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