a sudden and large decrease
My confidence took a nosedive when I found I had been lied to.
by The Return of Light Joker August 19, 2008
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Snorting very large amounts of cocaine. Also, the former, in addition to failing at what you intended to do as a consequence, thus nosediving twice.
"Wow, the RNC speakers sure took a nosedive tonight!"
by fromztoa August 25, 2020
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When you go to kiss someone and accidentally headbutt them with your nose
Guy 1 : "Dude, I was totally getting on with this girl and then...."
Guy 2 : "Then what?"
Guy 1 : "I nosedived"
Guy 2 : "Oh"
by MyTwinBrotherIs.... October 5, 2008
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When you are singing a song on the radio and sing the lyrics prematurely
Guy 1: *fucks up*

Guy 2: “nice radio nosedive man”
by GaY bOi.1 April 16, 2019
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A sexual act in which you handcuff your partner, (preferably female) to the headboard and dive into her vagina, in hopes to get your whole head inside
Guy 1: why is your girlfriend walking so funny?
Guy 2: i Philipino Nosedived her last night.
by guppy pboi January 22, 2013
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I took a qwerty nosedive this morning after working throught the night on that essay.

That raid took so long to finish, I kept qwerty nosediving in the middle.
by r1gg4 February 8, 2012
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moe'zes noze'dive (n).

1.) A sweet skateboard trick, in which an individual places the skateboard on his/her chest in mid-air and parts the air with his/her hands.

2.) A proposition of sorts involving the parting of limbs to reveal an opportunity of biblical proportions.

see: cunnillingus, no hand abraham
1.) I started my vert run with a 720 Madonna, then I went straight into the Moses Nosedive.

2.) Her legs parted like the red sea, so I gave her the moses nosedive.
by strathosphere November 20, 2010
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