Profile

Aaron Peckham

(he/him)
Founder of Urban Dictionary, a 25-year-old globally recognized platform documenting the evolution of language in real-time.

Experience

January 2025

Reached 17 Million Definitions

Urban Dictionary celebrated its 25th anniversary and reached over 17 million user-submitted definitions, cementing its place as a global platform for documenting language evolution.

April 2016

Launched Urban Dictionary Party Game

Released Urban Dictionary: The Party Game of Slang with Buffalo Games, bringing internet culture and slang to a tabletop game.

2003-2015

Expanded Urban Dictionary Store

Launched Urban Dictionary’s first merchandise store in the early 2000s, offering branded products. Relaunched in 2009 with on-demand printing capabilities, allowing fans to create custom t-shirts, hoodies, mugs, and more featuring any word from the site.

In 2015, the store underwent a significant redesign with a white-labeled platform, offering a fresh look, expanded product options, and an improved shopping experience.

April 2013

Received Tribeca Disruptive Innovation Award

Received the Tribeca Disruptive Innovation Award for democratizing the evolution of language, alongside notable honorees.

Featured in Theatrical Production

Urban Dictionary became the basis for “The Urban Dictionary Plays,” a theatrical production at Ars Nova in New York. The show brought together playwrights and directors to create works rooted in the platform’s content.

2009 - 2012

Became a Jeopardy! Category

Urban Dictionary was an official category on Jeopardy!, with contestants tackling definitions like "Polar Point presentation."

2009-2010

Featured on Comedy Central’s Tosh.0

Urban Dictionary was repeatedly featured on Tosh.0, a Comedy Central show celebrating internet culture and viral trends. Segments highlighted words like “Hot Pocket,” “Cosby Sweater,” “Procrasterbating,” and “Docking”.

Craig Ferguson Reacted to "Fergasm"

Craig Ferguson reacted to a user-submitted definition about himself on his late night show.

2003-2009

Won ACLU v. Gonzales

Sued the federal government and won. Named plaintiff and key witness in ACLU v. Gonzales, a landmark case that overturned the Child Online Protection Act and secured a major victory for free speech.

May 2005

Completed Master’s Thesis on Urban Dictionary

Completed Master's thesis Urban Dictionary: Distributed Moderation of an Online Dictionary at Cal Poly, analyzing the site's community moderation system.

January 2005

Published First Urban Dictionary Book

Published Urban Dictionary: Fularious Street Slang Defined with Andrews McMeel Publishing, the first Urban Dictionary book.

December 1999

Launched Urban Dictionary

Created Urban Dictionary in my freshman dorm room at Cal Poly.

Last updated: January 2025