A word that bears different meanings when used by those familiar with the Japanese language from those who speak not a lick of Japanese yet want to seem like they know what they're talking about, AKA your garden-varietyweeaboo.
When used by an actual Japanese speaker, it roughly translates to "it is" and is an integral part of Japanese grammar. When used by your average weeaboo, it roughly translates to "I am a stupid American faggot who has no idea what the fuck they're talking about."
A descriptor used to indicate that something is a bullshit knockoff of a part of Japanese culture. Can include poorly drawn anime, weeaboos, bad cosplay, and so forth. When in reference to a person, it should be followed by 'bitch', regardless of gender. When in reference to a thing, it should be followed by 'shit'.
Originates from the DESU meme, which involves spamming forums with the word 'desu' over and over again.
Jesus Christ, those fucking desu desu bitches in the room next to mine are STILL watching Death Note at 4 am.
Candy's drawing of a Yu-Gi-Oh orgy was some desu desu shit. I can't believe she handed it in for art class.
The ancient cult originating from Mississauga that trains in the art of Yo-Yo's. Membership is hard to achieve, as the Desu Leader takes pride in his work. Therefore achieving membership is next to Impossible. DESU!!!!!
The one word that every real Japanese person will go insane if you keep on saying it to them, mainly standing for 'it is' to go at the end of a sentence became a big meme of annoying weaboo or otaku. If you're wondering why it goes at the end of the sentence it's because in Japanese sentences are formed differently.
It is said in a motivational Poster that if you keep on typing Desu, you will turn Japanese, people believed that, and that's now what you will constantly hear from people who want to prove they're Japanese, also see kawaii for another annoying weaboo term.
1. Japanese for 'it is.' Often used at the end of sentences.
2. A huge 4chan meme that sorta went on to other sites. Suiseiseki, a character from the anime/manga Rozen Maiden, are nearly always mentioned. It usually is in motivational posters with Suiseiseki.
Or ใงใ in Hiragana. Desu is the polite form of the copula in Japanese linguistics. This translates out to "to be" or "is". It's usually used at the end of a sentence as the predicate, or is used to make a sentence sound more polite. The plain/casual form for this is "da", or ใ . Sentences that use the copula usually take on the form of "A is B" type sentences, although it can take on other moods depending on the grammatical particles that accompany it.
Unfortunately, the copula has been bastardized and misused too often by people who don't know anything about Japanese. If you want to sound like a complete fucktard, use desu at the end of your sentences while speaking in English, or use it excessively at the end of every sentence, even when the sentence doesn't require it to be used.
E.g., 1 - Stative sense
ๅใฏๅฟ็่จ่ชๅญฆใฎๅคงๅญฆ้ข็ใงใ/ใ - Boku wa shinrigengogaku no daigakuinsei desu/da - I am a graduate student in psycholinguistics.
E.g., 2 - Confirmatory sense
ใใฎๆ ็ปใฏ็ด ๆดใใใใงใใญ๏ผ- Kono eiga wa subarashii desu ne? - This movie is great, huh/don't you think?
E.g., 3 - Interrogative sense
Me: ๆฅๆฌ่ชใๅญฆใใงใใ - Nihongo wo manande iru - I am learning Japanese.
ใใคใใฃใๆฅๆฌ่ช่ฉฑ่ (Native Japanese speaker): ๆฌๅฝใซ๏ผใใคใใๅญฆใณๅงใใใใงใใ๏ผHontou ni? Itsukara manabi hajimeta n desu ka? - Really? When did you start learning?
Me: ใใฃใจใ็ด7ใถๆ้ๅใซๅงใใใฐใใใงใ/ใ ใใ ๅๅฟ่ ใงใ/ใ - Etto, yaku nanakagetsu-kan mae ni hajimeta bakari desu/da. Tada shoshinsha desu/da - Well, I just started about 7 months ago. I'm just a beginner.
ใใคใใฃใๆฅๆฌ่ช่ฉฑ่ : ใใใ๏ผใใใ้ ๅผตใ๏ผ- Sou ka? Ja, ganbare! - Is that so? Well, do your best!
E.g., 4 Improper use
Stupid person who doesn't actually know or isn't learning Japanese: OMG! Isn't that cat so kawaii desu^_^?
Me: ็ณ้ฃใใ๏ผ่ฑ่ชใง่ฉฑใใฐใใKawaii desuใใฃใฆ่จใใช ๆใใช้้ - Kusokurae! eigo de hanaseba, "kawaii desu" tte iu na. Orokana yarou - Eat shit! If you speak in English, do not say "kawaii desu", you stupid fucktard!
Stupid person: Nani? Speak English!
Me: ใฆใใใซใใใชไบ่จใใใใใชใ๏ผ- Temee ni sonna koto iwaretakunai! - Look who's talking, dickhead!