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A term coined by Otaku and Weeaboo alike for their 2D significant others; predominantly anime and video game characters. A Waifu, in contrast to a harem, is the love between one man and his one and only Waifu. You treat your Waifu with the utmost respect and courtesy and most refuse to even fap to their beloved, seeing the act as an insult to the non-existent woman they have committed themselves to.

A spin-off term "Husbando" followed for Fujioshi who feel similarly towards male characters.
Not even a missing dimension will keep you from your glorious waifu - The Melbourne MX Newspaper
by Chenoan March 25, 2011
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A Waifu is the word for an anime character , which is your "Wife". It also can be engrish , meaning pronounce Wife in japanese. The importenst thing in having a Waifu is to never have more than one. If you do so , your laifu is ruined.
I'm in love with my Waifu
My Waifu can't eat , she is 2D
by WaifuStealer January 14, 2015
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From the Japanese word ワむフ, a transcription of the word 'wife'. Your personal most attractive female anime/cartoon character. Commonly used by a weeaboo, but also used by people with common sense sometimes.
Male Equivalent: husbando.
Hey, you should check out the Scott Pilgrim comics. Kim Pine is totally my waifu.
by pixikid September 18, 2016
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Japanese for "wife". Outside of Japan, it is seldom used by anyone but weeaboos to display their unhealthy attraction for fictional anime characters. See: faggot.
by Siriusd July 08, 2010
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(fandom slang) A fictional female character from non-live-action visual media (typically an anime, manga or video game) to whom one is attracted and, in some cases, whom one considers a significant other.

Waifus is a plural of waifu.

a man can marry an infinite amount of waifus without any limits to how many he can marry because they are fictional character.
I have infinite amount of waifus. They are 2D.
by Infinite waifus September 07, 2017
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a waifu is well know for making body pillows feel like fucking chalk due to years of overweight, sexually deprived males (sometimes females) trying to put there dick in something that isnt alive and if it was would scream rape anyways.
via giphy
by Jhonathen smith June 16, 2017
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