the rainbow dash cum jar is a reddit post that depicts a rainbow dash figurine submerged in a mason jar full of cum. the owner of the jar would frequently update the posts and show the cum that has been added. the jar was later accidentally boiled over a space heater, turning the liquid brown.
“have you heard of the rainbow dash cum jar?”
by epic bruh moment February 29, 2020
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A act so vile and inhumane that the very mention of it alone will have you shunned from society.
Why don't you talk to john anymore

Oh, he did a rainbow dash cum jar
by duderuthless February 29, 2020
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