1 definition by cockmaster346

Double rainbow - when two guys cum over another guys face at the same time, hence crossing spunk streams - meaning to be double rainbowed.
"I really want a double rainbow tonight"

"Fancy a double rainbow?"
I really want to double rainbow him, are you up for it?"
You should have seen the double rainbow I got last night.
That was the best double rainbow I've ever had.
by cockmaster346 February 4, 2010
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