Means to agree with something, same exact meaning as “Based”. Comes from the word based because scientifically, the term “Alkaline” is a “Base” substance.
Leftist 1: “ Joe Biden is a good president

Leftist 2: “Alkaline”
by SebastianBar1 February 11, 2022
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A way that GregTech players describe something based
Some random gregger: I just made a PTFE setup in nomi CEu.
Random gregger 2: Alkaline.
by Gralakel April 28, 2023
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Alkaline Vvater (spelled with two V’s)
Is drinking Vodka from an alkaline water bottle - as a disguise mechanism.
Hey may I please have a water?

I don’t have any!

What’s that in your hand?

Ohh this… shhh this is Alkaline Vvater!!
by pseudonympho April 20, 2022
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