When an astronaut jizzes in another astronauts helmit to make it look like a lava lamp inside.
"Dude, do you think Neil Armstrong ever got lava juiced?"

"What the fuck is wrong is you? But yeah he probably did."
by Jaysaac chobes January 22, 2013
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When a dude fucks a person pretty hard (male/female) that their stomach starts to hurt. Cum can make it worse.
Matt: "Just a bit of 'Lava Juice' from the stomach. It was a little violent, but I like to be rough sometimes."
Ilse: "It hurts, you bastard!"
by 1rexie July 9, 2023
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A bloody queef usually happening when a woman is on her period.
Girl 1: Did you here that pop? Cause that bitch just lava juiced

Girl 2: wha- (wheezes)
by bpberna November 20, 2017
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