A sexual position encountered during a threesome or Menage a Trois. Characterized by one male performing oral sex on a female as she is lies declined (downhill) while she simultaneously performs oral sex on male #2, who is in fact lying on his back on the floor.
1) Yo homie, I heard that Ralph was doing a Downhill Double Dip the other night. He said it was crazy!

2) Did you see that chick when she was Downhill Double Dippin'?! She is very talented.
by Ralph (DMS) Castro June 5, 2010
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When you wake up with a raging hard-on caused by having a full bladder. You have to stand way back from the toilet and lean way forward so that your pee will go into the bowl, rather than going all over the wall. In this position, you will resemble one of those downhill skiiers doing a ski jump.
Sheila: What the heck are you doing? You look like you're doing a ski jump in the bathroom.

David: I had to pee, and if I don't stand like this, my hard-on will shoot pee all over the potted plant you put on top of the toilet. Don't I look like a downhill skiier pee-er?

Sheila: That thing sure is big.

David: Yep
by Greyborzoi October 10, 2008
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A phrase used to express lack of understanding when everything should be perfectly clear.

A way of saying "I should understand this completely, but it makes no sense whatsoever."

Origin: In the 1980s ski comedy "Hot Dog: The Movie," the antagonist proposes a Chinese downhill to resolve all conflicts between himself (the hotshot skier) and the protagonist (not so talented skier/cool guy). After they outline what's at stake -the girl, rule over the slopes, cash, etc. -the comic-relief Chinese guy leans in and asks "Wha te fuck is a Chinese downhir?" (A Chinese downhill is a ski race with a shotgun start -first one to the bottom wins.)
Journalists talking about a story that's been assigned, but the second journalist missed the meeting:

J1 -"Good luck getting Pee Wee Herman to discuss his movie theater fetish. You better get on it; deadline is Friday."

J2 -"Pee Wee Herman about what? When did this happen? What the fuck is a Chinese downhill?"
by The Afterworld Cafe June 4, 2007
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This is the new term for when a television series runs out of new material and begins making ridiculous subplots that inevitable lead to the downfall of the show. Previous generations have called it "jumping the shark" after a bold move by the Fonz.

The prime example of this was in an episode of Lost called "Tricia Takanawa is dead", where the climax of the episode was when a titanic man named Hurley drove a broken VW hippy van down a hill for no apparent reason.

"Man that episode reminded me of when Lost got pushed downhill in a hippy van lol."
by Venis March 9, 2007
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Tony Hawk's Downhill Jam is freakin amazin! I have it for Wii, it f-n' rox! i created my own dude and he rox i used to have it but traded it in, i got a new one 2 days ago i used to be a sensei on my 1st one, but now im a champion on my new one ( CHAMPION IS A LITTLE LOWER THAN SENSEI, either one or 2 levels difference ) you should buy it NOW!!!!!!
me: Dude, you Tony Hawk's Downhill Jam?

Dude: Nah man, I heard it's awesome though.

me: It is, go buy it nigga.

Dude: I'll ask my mom.

me: You better!
by humpface March 30, 2008
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When a film contains a number of good scenes which are almost immediately followed by scenes of a far lesser quality, causing the film to slowly move downhill until there's no hope in sight. The downhill effect was made popular by Raymond Walter back in 1988 with his film "Blue Code."
"The Perks of Being a Wallflower" really suffered from the downhill effect unlike the much superior film "Me and You and Everyone We Know."
by Gray's Guy November 1, 2013
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1. : Man guess what?
2. : What? Just had a Rocky Road?
1. : Yes, while having a Downhill Smash with Sarah.
by LukasTheLegendGoatfish December 8, 2021
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