Be on one Meaning in English

expression

US

ˈbi/, /bi/ /ˈɑn/, /ˈɔn/ /ˈwən

BEE-awn-wuhn

UK

bˈiː/ /ˈɒn/ /wˈɒn

BEE-on-won

Definition

To be unusually energetic, excited, or acting wild, often in a party, creative, or emotional context; slang.

Usage & Nuances

Very informal, slang—mainly used by young people in the US and UK. Common in party or creative contexts, sometimes suggests being under the influence. Not appropriate for formal settings. Used like: 'She's on one tonight!' or 'You are really on one today.'

• Spanish: estar a tope - estar encendido (coloquial)
• Portuguese (BR): estar ligado - estar com tudo (gíria)
• Portuguese (PT): estar cheio de energia - estar empolgado (gíria)
• Chinese (Simplified): 嗨起来了 - 状态爆棚 (俚语)
• Chinese (Traditional): 嗨起來了 - 狀態爆棚 (俚語)
• Hindi: ज़ोर पर होना - जबरदस्त मूड में होना (स्लैंग)
• Arabic: في قمة النشاط - في حالة حماس (عامية)
• Bengali: উত্তেজিত - চঞ্চল - মজায় মেতে থাকা
• Russian: на кураже - на эмоциях
• Japanese: ノリノリ - テンションが高い
• Vietnamese: quá phấn khích - 'quẩy' hết mình
• Korean: 완전 들떠 있다 - 신나 있다
• Turkish: coşmuş - aşırı enerjik
• Urdu: جوش میں ہونا - بہت پرجوش ہونا
• Indonesian: lagi semangat banget - lagi heboh

Example Sentences

Wow, you’re really on one today!

basic

He's always on one at parties.

basic

After winning, the whole team was on one.

basic

You should've seen her last night—she was on one!

natural

Don’t mind him, he’s just on one right now.

natural

Every time that song comes on, I get on one.

natural