runderwear 

The skin-tight underwear that comes pre-sewn on a pair of super duper short running shorts.

timing girls: "Holy shit, you're not wearing any underwear!"
super fly runner guy: "I, as a matter of fact, am not. I am wearing runderwear. Look!"

runderwear by teeeheeee October 31, 2008

runderwear 

The undergarment worn on the waist to thigh and pelvic region when running, either for exercise, sports, pursuit or evasion. This undergarment absorbs perspiration and holds the genitals intact. It should not be worn continually after running, and should be washed soon afterwards.

"When I finished jogging at the track today, my runderwear were soaking wet and quite pungent!"

runderwear by Joefeather May 15, 2013

poor waif in his underwear 

A person who blows their cover as a Kremlin propagandist.

“Seymour Hersh was a poor waif in his underwear when quoting his source, a supposed “anonymous US official”, who used the russian idiom “waif in his underwear”, which until then was not used in English.”

poor waif in his underwear by atomicapproach July 28, 2023

a poor waif in his underwear 

A pro-Russian journalist or Russian/Kremlin official who attempts to pass off fake quotes as real things said by government or military officials in Western countries but are clearly fake due to translated Russian phrases, strange wording, words being used in strange or unnatural ways, etc.

The phrase comes from an article written by Seymour Kersh, a pro-Russian journalist. In the article, he claimed an anonymous American official called President Zelenskyy of Ukraine 'a poor waif in his underwear'. However, the term 'waif' is extremely uncommon in American English, and the whole phrase was a Russian meme until the publishing of the article.

Seymour Hersh was a poor waif in his underwear when quoting his source, a supposed 'anonymous US official', who used the Russian idiom 'a poor waif in his underwear', which until then was not used in English.

Pro-Kremlin social media users were floundering like poor waifs in their underwear to dismiss the initial use of 'a poor waif in his underwear' as a mere translation issue without explaining why there would be a translation issue between a US journalist and a US official.

a poor waif in his underwear by True Squatch July 28, 2023

a poor waif in his underwear 

a person who has blown their cover as a Kremlin propagandist, especially when it is unclear they even knew they were one

Seymour Hersh was a poor waif in his underwear when quoting his source, a supposed “anonymous US official”, who used the russian idiom “waif in his underwear”, which until then was not used in English.

a poor waif in his underwear by 504jdw July 28, 2023

Underwear Streaks 

When you shit yourself, or fart loudly enough that a bit of shit sprays out and stains your underwear with brown streaks.

Dude I just loud farted and it left me with underwear streaks. I may just throw them away at this point.

Underwear Streaks by Soapey August 3, 2019

Party Underwear 

1.for girls: Party Underwear are a pair of cute or sexy panties worn when they know that there is a a chance they will hook up with someone at a party.

2.for boys: Party Underwear is an adult style diaper worn under their boxers or briefs in precaution when they know there is a chance they might get too drunk at a party and soil themselves during the night. piss drunk

1. "I'm wearing my party underwear 'cause Javier will be at Tad's tonight."

2. "Kevin better wear some party underwear tonight, because last week he shit his pants."

Party Underwear by Jonnhy D December 16, 2008