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A badass racecar that Speed Racer drove. known to whoop anyones ass except X's racecar.
OH SHI- there went the mach 5!
Mach 5 by The Insane Hobo May 14, 2008
You feel it building up in your intestines for a day or more. You bend over in pain like you have a kidney stone near the end.
Then you sit on the pot, and BOOOOOMM!

SHIT, AIR, and more SHIT AND AIR exit your hole at extreme velocity.

You get the wind knocked out of you and sometimes take a little "nap."

It's takes you 7-10 minutes to recooperate.

You DO feel wonderful afterwards though.
Sorry I was in the bathroom so long, I Mach 5 'd and blacked out for a while.
Mach 5 by SexualHotsauce November 3, 2019
The high you get from mixing marijuana and K2 (A legal herb that you can smoke to get a different high than marijuana).
Dude me and Mike went Mach 5 yesterday. It was intense!
Mach 5 by L0ckh34rt September 16, 2010

Mach 5 Giga Karen 

A Mach 5 Giga Karen is the highest known level of Karen. They're the Karens that will go far out of their way to destroy people that have nothing to do with them. These are not stupid Karens they have been doing this for years that's why they're always older and have a track record of nothing but bloodshed.

They're truly awful people that usually die alone, not even their kids speak to them. Get ready as more Mach 5 Giga Karens will rise in future. You've been warned.
Boss: Hey how has your first month been at the company?

Guy: It's been good.

Boss: Good, it's just that you've received a few complaints about your attitude and competency.

Guy: Really? From who?

Boss: I can't say but we've received a lot of complaints from this person and they're a trusted member of staff. If this keeps happening we're going to have to speak about your position in this company.

*Later on

Wife: How was work?

Guy: Not good I was reported by a Mach 5 Giga Karen, she's trying to get me fired already and I've only been there a month. I think it's because I looked at her the wrong way 2 weeks ago.

going mach 5 

Partying extemely hard.
"After work, Tito hit the bars. He was going Mach 5 all night."
going mach 5 by The Impresario September 15, 2006
More from Urban Dictionary

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
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