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japanese. (usually, a woman's) breasts. a tasty treat.
large chested waitress: Would you like any appetizers?
customer: oppai, I'll take two.
oppai by pokute May 1, 2004
part of chest for girls (japanese word of boobs)
may be flat or big
i love oppai
oppai by AnimeFreak1200 September 7, 2016
"Oh no, i'm touching Asuka-san's oppai! \(*0*\)
Oppai by lonleywanderer3 November 15, 2017
tits in Japanese, generally used to refer to the larger variety....which are rare in Japan cause most o fthem have small little mosquito bite tits but the ones that have big guns are keepers.
Fuck this sushi shit, I gotta get me some oppai.
oppai by SkinnyPete January 5, 2004
Oppai is a nerdy way of saying breakfast. It refers to anything flat like pancakes or waffles.
"I want some oppai" or "I feel like eating oppai"
Oppai by Datnigga593 June 6, 2018

oppai loli 

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.
oppai loli by TeaLobster13 July 20, 2011