A sport. Raced on moutain bikes down a steep hill filled with obsicals such as roots, jumps, stumps , drops and so on. Best sport in the world get out and do it. Commonly raced on full suspension bikes but some hartails are equaly as suited to racing downhill.
I entered that downhill race on sunday
by greened October 23, 2004
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Going down a hill on wheels (skateboard, bicycle, etc.)
The kids went up the mountain to the skateboard park. The park was closed so they starting downhilling home.
by Joninho88 February 27, 2016
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Siamak Zerehpoush; being a failure in everything you do
Look at Siamak sitting over there, he’s going Downhill for sure
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1. When an artist. (writer, painter, musician, other.) is built up to the level where they've felt proud of their works. And they keep working on their art when they know they aren't in the suitable mood. Nor the time to work.

2. Artist keeps working, knowing that he/she isn't going to be proud of his work. His unstoppable running mood doesn't stop him/her from working.
1. "Man, her poetry is really falling downhill.

2. "I can't believe I broke my favorite band Metallica's new cd, St. Anger. They really went downhill on that album.
by josh July 15, 2004
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A downhill ski race with no rules. Every man (or woman) for themselves, anything goes, first to the bottom wins.
Made (in)famous by comedy movie Hot Dog: the Movie (c.1984)
Skier 1: "We'll settle this by Chinese Downhill!"
Skier 2: "Ya, Chinese Downhill is the only way."
Skier 3: "What the f*ck is a Chinese Downhill?"
by SomeDoucheWithAGuitar September 24, 2017
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"The Downhill Gifter" - While you are giving someone oral sex - 1. Gently reach down and start to massage their feet 2. Then extend your arms fully behind you 3. Then lift upward 4. You should now be resembling a "Downhill Ski Position"
A girl sits pondering and penniless about what to get her boyfriend for his birthday... "Hmm, Well I know he wants to go skiing but we can't afford that... Maybe I could massage his feet? He does work really hard everyday... And every guy likes to get oral sex... Hmm..."... When the Birthday Boy comes home from work, he finds his girlfriend standing in the living room wearing a full ski suit, snow boots and goggles. A little thrown off at first, he says... "So, are we going skiing for my birthday after all?" She smiles back and says, "No... Not quite... :) "Its called The Downhill Gifter
by Maryjane* February 6, 2014
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