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5.1 refers to the state you are in when you become really loud after a drinking session. The 5.1 originates from the surround sound speaker system and hence you can hear the person from every angle.
1) Easy mate you on a 5.1
2) Turn it down bruv u reachin 5.1
5.1 by Silent Assassin June 17, 2005
The most popular guy at my school was 5'1.
New kid- You know that 5'1 guy with the muscles? I'm not intimidated but almost, that guy looks tough.
Guy who's been around school- Yea that's JoJo. The other kids call him GI JoJo, I don't mess with him. He's a good guy to make friends with, he's the most popular guy in school.
5'1 by Solid Mantis January 21, 2017
the most perfect, sexiest, cutest height for a female. cannot be compared with. short girls rule.
"that girl, jenny, she's 5'1. that alone is enough to make me fall in love with her"
5'1 by qwertyuiop098754321 November 18, 2020
Barlow: Five-point-one is *RIGHT*
5.1 by Spi September 28, 2003
theory of sorround sound for speakers. does not work with headphones.
1. ) "I bought an 5.1 surroundsound headset." "Well Bro that is bullshit. It does not work.!"
5.1 by Spankmaster B November 27, 2012
1. A police code for a 'dangerous driver.' Can be excessive speeding, wreckless driving, or driving under the influence.

2. The smaller version of 'Need For Speed Most Wanted' for the PlayStation Portable.
1. 21 to radio, come in radio. We have a 5 1 0 heading northbound on I-10. Suspect is driving an orange Mustang. Beginning pursuit, over.

2. I bought Need For Speed Most Wanted 5 1 0 for my PSP yesterday.
5 1 0 by Anti-Yiffer June 11, 2006
More from Urban Dictionary

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026

Northstarring

Finding your way back to the truth by fixing on one verified fact and working out from there, the way you navigate by the North Star when everything around you is spinning.
Rumours were flying everywhere, so she went northstarring — one checked fact at a time.
Northstarring by Light Bearer October 22, 2026
Word of the Day on October 23, 2026

Plate of Brown 

A plate of brown consists of foods that have little to no nutritional value, and are typically deep fried. A true plate of brown will also be accompanied by a dark soda.
Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
Word of the Day on October 22, 2026

Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
Larpenomics by Rbois09 October 21, 2026
Word of the Day on October 21, 2026

Palmela Handerson 

Your hand that you masturbate with.
Girlfriend: What are you going to do for the next week while I'm on holiday?

Boyfriend: Have a visit from Palmela Handerson of course!
Word of the Day on October 20, 2026
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