1 definition by Steve Pembleton Broker-Stoke

Abbreviation of 'You're Only Young Once'.

Noun

1. An excuse used by young people to have fun.

2. A reminder for parents not to try anything they're too old for.

Verb

3. To act too young for your age.
Used as a noun:

'Bro, down that beer. YOYO.'

'Get off that skateboard, Dad! YOYO.'

Used as a verb:

'Dad, seriously. Put the skateboard away. You're YOYOing.'
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