Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
“UPD” or “Último Primer día” (Last first day) is an argentinian celebration that students make in reference to their last first day in high school. The UPD begins on a night prior to the start of classes, with the condition of staying awake until entering school the next day. The celebration begins in a house where all or some members of the course meet, which then lasts overnight in parks near the school and ends at the door or in the courtyard of the institution they attend, until the time of school entry. This celebration is widely criticized some acts of vandalism, the noise late at night, the use of flares, dirt generated on public roads and, especially, the consumption of alcohol
Text fits
Save
Cancel