Japanese slang for younger girls with abnormally large breasts for their age, often featured in lolicon.
Friend 1: Is that lolicon? You're fucking sick, dude.

Friend 2: It's okay, because she's an oppai loli!

Friend 1: God damn it, you weeaboo faggot.
by TeaLobster13 July 20, 2011
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Term used by the anime/weeb community to express their liking for a anime girl with particularly large breasts.

This phrase is for the people who like those them big ass tiddies
Largest oppai out of "flat is justice" and "medium is premium"
Megumin = Flat is justice
Aqua = Medium is premium
Darkness/Wiz = oppai is truth
by F1ynn June 23, 2021
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The best person ,the true king of the world!
He has a very big harem,over 1 mil. girls!!!
The girl:Do u want to be my Oppai Dragon?
Oppai Dragon:Of course!
by Karmanigger69 March 2, 2021
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It is when the nips can be as big as a baby's or adult's penile.

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pp oppai (long version, translated); Penis Penis Breast
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Mostly found in women and kinky hentai / doujins / possibly porn too
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Be aware, who ever likes these kinds of things are a total perv.
P1; Did you hear?
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P2; Hear what?
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P1; Your seatmate is so~ into pp oppai.

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P2; Really? She must be cool and perverted.
by Penile Erectile April 9, 2020
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Nation Holiday where every women has to send their oppai to every man they know.
It is held on the 12th of April for unknown reasons.
"hey, it's soon Oppai Day"
"Yeah, ikr, I can't wait"
by Almoss April 7, 2022
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Usually chanted while making a circle of T-posing individuals. This statement both sends demons into an item (in the center of the circle) and brings them out. The sentence itself is absolute nonsense in every language. The sentence translates to Ass Vagina Boobs, originating from Japenese.
30 people standing around a grape: Oshiri Monco Oppai, Oshiri Monco Oppai, Oshiri Monco Oppai, Oshiri Monco Oppai, Oshiri Monco Oppai...
You: ...no
by Vincent Does Things October 13, 2019
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Person who loves big tits (esp. anime titties)
Pedestrian oppai fan: Bro did you play this god tier nukige called oppai academy?
Based loli enjoyer: I ain't no oppai seijin ya dipshit. I only play lolige.
by pyun pyun April 15, 2022
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