A shonenfag is a person who loves shonen (anime or manga for kids, with a very simple plot, nearly always about who's the most powerful and they last during decades (for example, DragonBall, one of the most popular shonen started in 1984 and they're still making new episodes today. ) a little too much and they're saying anything else is bad even without knowing anything about it. Similar to narutard . They're the opposite of weeb and they're sometimes referenced as normies. They often insult people when they find good arguments who demean their favorite shows.
Weeb : Hey, have you ever heard of "Your Name." ?

Shonenfag : NO I CAN'T, I NEED TO KNOW WHO'S THE MOST POWERFUL IN DBZ EPISODE 739, ANYWAYS YOUR SHOWS ARE TRASH AND YOU'RE TRASH TOO.
Weeb : Ok, normie.
by 123321mario February 20, 2020
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Shonen Faggot , a person who likes bad shonen anime and refuses to watch something else. Often said by weebs . Similar to Narutard
Shonenfag : I LOVE DRAGONBALL OMG
Weeb : Okay now watch Your Name. You will know something else than shonens.
Shonenfag : NO I CAN'T I NEED TO WATCH THE 718TH EPISODE OF THE 639TH SEASON OF ONEPIECE
Weeb : you shonenfag
by 123321mario February 20, 2020
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