To perform cunilingus when the recipient is menstruating.
Pedro: How was your night last night?
Jack: I didn't realise untill after but I did the Burgundy Nosedive.
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A vehicle(especially a jeep) that is slammed on the front end and lifted on the back end
Chris: Jace, did you really get a New Zealand Nosedive?
Jase: Yes.
Chris: It looks gay as fuck.