When a male pours a blue Slush Puppy into the vagina of a woman - usually creating a burning sensation. This is a tactic often used by aspiring teenagers trying something new.
Vickey: How was it last night Annie?

Annie: It was horrible! Donald slush rushed me round the back.
by Bazza G September 28, 2020
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When someone sticks out their tongue and their male partner ejaculates all over it, then it rushes down their tongue like slush on a mountain.
I gave that girl a good slush rush last night.
by The Pickle Man September 2, 2019
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