When you nut in a guys dickhole and slap his ass simultaneously while in a tree.
Yeah dude, last night was wild, I gave my boyfriend a Vietnamese flashbang.
by chegwardthefifth June 23, 2022
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The act of urinating into an individual's mouth, and having the urine flow down their naked body.
"Bro it would be really hot if we did the vietnamese river".

"Ok let me get naked and open my mouth".
by The Cock Guzzler December 10, 2021
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