A gay bi or lesbian orgie.
Tom was invited to a rainbow roll.
by piratelizzie March 1, 2007
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Man of Asian decent who is also gay.

Don't worry about what kind of Asian because you are basically a racist if you use this anyway.
"Hey Jim-Bo, d'jew see that Rainbow Roll? I bet he orders his ginger whole!"
by DaveJonesJR March 17, 2014
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In the event you’re the lucky cunt that has more than 3 ingredients lined up of different ethnic backgrounds and you get to taste each flavour at your leisure e.g Asian lass, black lass, white lass and more.
1. Gents I’m hitting a rainbow roll tonight!

2. Jason: “ James, what happened to you last night? I saw you with the Asian girl and later the Black girl??”
James: “Dude, I got a rainbow roll”
by @tabs November 22, 2019
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