A phrase that is spoken when an image or video, typically (although not always necessarily) porn or hentai, elicits emotions of hype or horniness.
"Did you see GO1 completely 180 Leffen at the Top 48, though?"
"Oh yeah. That was an unga bunga moment."
"Oh yeah. That was an unga bunga moment."
by Headwig April 1, 2020
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