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Motto of the Wild Weasels - You Gotta Be Shittin Me
The expression comes from an elite group of fighter pilots that were formed in the Vietnam war in 1966 to combat increasing losses from Soviet SAM (Surface-to-Air) missles. The mission of the Wild Weasel was to to fly ("troll") ahead of incomming F-105 Thunderchief formations. In essence, the mission was to trick the VC (bad guys) into thinking that the WW (Wild Weasel) was an attaching Thud, when they targeted the Weasels, they would initiate a tactical manuver to hit the SAM site with a radiation seeking missle.
The term YGBSM comes from one of the original briefings when a weasel pilot stated, in content "You're telling me that I have to fly downtown Hanoi, with one bullet, and I can't shoot at him until he shoots at me..... you gotta be shitting me" --- YGBSM

In memory of the Weasels -- my beloved father Lt. Col Larry W. Biediger (KIA) , his weapons officer, Claude Silva (KIA), and Col. David Everson (USAF RET)
YGBSM-Weasels
YGBSM by thuddriver1 October 6, 2009
Related Words
YGBFSM • YGBSM • ygbfkm • YGBFFM • YGTBFSM
During the Viet Nam war, US pilots were getting shot down because of surface to air missile SAM sites. In an effort to counter-act the losses, the USAF came up with a tactic called the hunter-killer team concept. This tactic required a pilot, the hunter, to fly low over an area of suspected SAM sites in order for the sites to start shooting. Once the SAMs started shooting, pilots in follow-on aircraft, the killers, dropped bombs and fired missiles to disable the SAM site. When told of the new tactic at a pre-brief, one pilot was reported to respond, "You've gotta be shittin' me!" The term is associated with Wild Weasel pilots who flew F-105s, F-4Gs, and currently F-16s.
Currently, the term is used as an exclamation of shock or disbelief.
"Hey, dude, I heard there was another hurricane headed towards NoLo"
"YGBSM!"
YGBSM by YGBSMM May 21, 2007
boss---you need to (insert the impossible here)

employee---ygbsm
ygbsm by client 69 March 26, 2008
You Gotta Be Fist Fucking Me

Yet a more vulgar, but none the less appropriate, expression of the phrase “Are you kidding me?”

Used when the recipient may mistake the rhetorical “Are you shitting me?” question as requiring an answer.

Generally reserved for situations in which the person uttering the phrase is completely discombobulated, or when flabbergasted due to the repeated demonstration of stupidity or ineptness by others.

Easily shortened to YGBFFM for texting purposes, or when uttering the phrase would have a negative impact to your HR file.
Coworker 1: “The IT department deleted all the files again.”
Coworker 2: “YGBFFM!”
YGBFFM by samuraistan November 16, 2011
YGTBFSM: Acronym for "You('ve) Got to be Fucking Shitting Me". Likely military origin.
Troop 1: We're getting recalled for a squadron-wide piss test.

Troop 2, just returning from Amsterdam: You've got to be fucking shitting me (YGTBFSM).
YGTBFSM by poopoopeepeedaddy December 19, 2013
acronym, used in written form only.
YGBFKM = You Gotta Be F***in' Kiddin' Me
alice: have you heard? Sodium Benzoate messes with your DNA!
Bob: You mean, the preservative they've used in soft drinks for decades?! YGBFKM!!!
ygbfkm by spankthemachine June 24, 2007
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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