天才かよ

• Reading: てんさいかよ
• Romaji: tensai ka yo
• Kanji breakdown: 天 (heaven) + 才 (talent) → genius; かよ is a rhetorical exclamation particle
• Pronunciation: /te.n.sa.i.ka.jo/

Meaning

Are you a genius or what? — a rhetorical exclamation of admiration for something impressively clever or skilled.

A tsukkomi-style (retort-style) compliment where the speaker pretends to be exasperated by how good someone is. The かよ ending adds a rough, incredulous punch that makes it feel spontaneous and genuine rather than polished. Extremely popular as a reaction on social media, in gaming, and among friends when someone pulls off something unexpectedly brilliant.

Examples

1. この発想は天才かよって思った。 When I saw this idea, I was like — are you a genius or what?
2. 天才かよ、一回で覚えちゃうの。 Are you a genius? You memorized it on the first try.
3. 5分でこのクオリティ？天才かよ。 This level of quality in five minutes? Are you a genius or what?

Usage Guide

Context: friends, social media, gaming, reactions

Tone: incredulous, admiring

Do Say

• 即興でこれ弾けるの？天才かよ。 (You can play this off the cuff? Are you a genius?)
• 寝てないのにこのパフォーマンスは天才かよ。 (Performing like this on no sleep — are you a genius or what?)

Don't Say

• 初対面の人や目上の人に「天才かよ」は馴れ馴れしい (Using 'tensai ka yo' with strangers or superiors is too familiar)

Common Mistakes

• Using 天才かよ with people you don't know well — the かよ ending is rough and only appropriate with friends or online

Origin & History

Combines 天才 (genius) with the colloquial rhetorical particle かよ (expressing disbelief or exasperation). This tsukkomi-style compliment became a standard social media reaction in the 2010s, following the pattern of hyperbolic praise phrases.

Cultural Context

Era: 2010s social media culture

Generation: Teens to 30s primarily

Social background: Universal informal

Regional notes: Used across all of Japan. Follows the tsukkomi comedy tradition of expressing admiration through mock exasperation.