Short for hydropump, an attack performed by water-type Pokemon. It usually involves a concentrated stream of water being propelled at the opposing Pokemon.
I quickly dispatched of that Onyx with my Blastoise's hydropump!
by kmgm12 December 5, 2006
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A love or passion for all things water such as fishing, surfing, wakeboarding, water-skiing, boating, relaxing on a beach, swimming, scuba diving, etc...
I need to find my hydro high, I'm headed to the beach!
by HHloveswater June 20, 2017
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The basic bitch of water bottles. Typically used by the quirky/annoying girls who say things like, spill the Tea. They'll often protect it with their life despite the fact that it is usually protected by a warranty and they cover the entire water bottle in annoying stickers.
VSCO Girls love their Hydro flask.
by MEMES! July 30, 2019
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A stainless steel bottle that keeps your water cool in a hot summer day with no air conditioning and only the noise of the tv as you lay on the floor complaining of the heat...
"Look i bought I bought a hydro flask. I'm so quirky. Sksksksksksksks"

"SHUT THE FUCK UP"
by TheEpicPwnr September 1, 2019
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